feat(pubsub/v2): add new v2 samples (#5344)

* feat(pubsub): add v2 topic and publishing samples (#5336)

* feat(pubsub): add v2 topic and publishing samples

* address code review comments

* feat(pubsub): add v2 subscription samples (#5339)

* feat(pubsub): add v2 subscription samples

* fix issue with line length

* update quickstart

* address gemini code review comments

* Add doc comments to client.Subscriber calls

Clarify that client.Subscriber accepts either a resource ID or a fully qualified name for the subscription. If a resource ID is used, the project ID from the client is assumed.

* fix region tag issue

---------

Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>

* feat(pubsub): rewrite v2 schema samples  (#5340)

* feat(pubsub): add v2 rewritten schema samples

* resolve gemini review comments

* docs(pubsub): add comments for publisher instantiation (#5343)

* docs(pubsub): add comments for publisher instantiation

* update comments and var names

* change more variable naming

---------

Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>

Author: hongalex

pubsub/go.mod

@@ -3,11 +3,12 @@ module github.com/GoogleCloudPlatform/golang-samples/pubsub
 go 1.23.0
 
 require (
-	cloud.google.com/go/bigquery v1.67.0
-	cloud.google.com/go/iam v1.5.0
-	cloud.google.com/go/pubsub v1.49.0
-	cloud.google.com/go/storage v1.51.0
-	cloud.google.com/go/trace v1.11.5
+	cloud.google.com/go/bigquery v1.66.2
+	cloud.google.com/go/iam v1.5.2
+	cloud.google.com/go/pubsub v1.49.1-0.20250606190241-032846f4b2ed
+	cloud.google.com/go/pubsub/v2 v2.0.0-alpha.2
+	cloud.google.com/go/storage v1.53.0
+	cloud.google.com/go/trace v1.11.3
 	github.com/GoogleCloudPlatform/golang-samples v0.0.0-20240820230436-761d0ae7aeff
 	github.com/GoogleCloudPlatform/opentelemetry-operations-go/exporter/trace v1.24.1
 	github.com/google/go-cmp v0.7.0
@@ -16,19 +17,19 @@ require (
 	github.com/linkedin/goavro/v2 v2.13.0
 	go.opentelemetry.io/otel v1.35.0
 	go.opentelemetry.io/otel/sdk v1.35.0
-	google.golang.org/api v0.229.0
-	google.golang.org/grpc v1.71.1
+	google.golang.org/api v0.233.0
+	google.golang.org/grpc v1.72.0
 	google.golang.org/protobuf v1.36.6
 )
 
 require (
-	cel.dev/expr v0.19.2 // indirect
-	cloud.google.com/go v0.120.1 // indirect
-	cloud.google.com/go/auth v0.16.0 // indirect
+	cel.dev/expr v0.20.0 // indirect
+	cloud.google.com/go v0.121.1 // indirect
+	cloud.google.com/go/auth v0.16.1 // indirect
 	cloud.google.com/go/auth/oauth2adapt v0.2.8 // indirect
 	cloud.google.com/go/compute/metadata v0.6.0 // indirect
-	cloud.google.com/go/monitoring v1.24.1 // indirect
-	github.com/GoogleCloudPlatform/opentelemetry-operations-go/detectors/gcp v1.25.0 // indirect
+	cloud.google.com/go/monitoring v1.24.0 // indirect
+	github.com/GoogleCloudPlatform/opentelemetry-operations-go/detectors/gcp v1.27.0 // indirect
 	github.com/GoogleCloudPlatform/opentelemetry-operations-go/exporter/metric v0.51.0 // indirect
 	github.com/GoogleCloudPlatform/opentelemetry-operations-go/internal/resourcemapping v0.51.0 // indirect
 	github.com/apache/arrow/go/v15 v15.0.2 // indirect
@@ -37,6 +38,7 @@ require (
 	github.com/envoyproxy/go-control-plane/envoy v1.32.4 // indirect
 	github.com/envoyproxy/protoc-gen-validate v1.2.1 // indirect
 	github.com/felixge/httpsnoop v1.0.4 // indirect
+	github.com/go-jose/go-jose/v4 v4.0.4 // indirect
 	github.com/go-logr/logr v1.4.2 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/goccy/go-json v0.10.3 // indirect
@@ -50,28 +52,30 @@ require (
 	github.com/klauspost/cpuid/v2 v2.2.6 // indirect
 	github.com/pierrec/lz4/v4 v4.1.18 // indirect
 	github.com/planetscale/vtprotobuf v0.6.1-0.20240319094008-0393e58bdf10 // indirect
+	github.com/spiffe/go-spiffe/v2 v2.5.0 // indirect
+	github.com/zeebo/errs v1.4.0 // indirect
 	github.com/zeebo/xxh3 v1.0.2 // indirect
-	go.einride.tech/aip v0.68.1 // indirect
+	go.einride.tech/aip v0.70.1 // indirect
 	go.opencensus.io v0.24.0 // indirect
 	go.opentelemetry.io/auto/sdk v1.1.0 // indirect
-	go.opentelemetry.io/contrib/detectors/gcp v1.34.0 // indirect
+	go.opentelemetry.io/contrib/detectors/gcp v1.35.0 // indirect
 	go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.60.0 // indirect
 	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.60.0 // indirect
 	go.opentelemetry.io/otel/metric v1.35.0 // indirect
 	go.opentelemetry.io/otel/sdk/metric v1.35.0 // indirect
 	go.opentelemetry.io/otel/trace v1.35.0 // indirect
-	golang.org/x/crypto v0.37.0 // indirect
+	golang.org/x/crypto v0.38.0 // indirect
 	golang.org/x/exp v0.0.0-20240719175910-8a7402abbf56 // indirect
-	golang.org/x/mod v0.23.0 // indirect
-	golang.org/x/net v0.39.0 // indirect
-	golang.org/x/oauth2 v0.29.0 // indirect
-	golang.org/x/sync v0.13.0 // indirect
-	golang.org/x/sys v0.32.0 // indirect
-	golang.org/x/text v0.24.0 // indirect
+	golang.org/x/mod v0.22.0 // indirect
+	golang.org/x/net v0.40.0 // indirect
+	golang.org/x/oauth2 v0.30.0 // indirect
+	golang.org/x/sync v0.14.0 // indirect
+	golang.org/x/sys v0.33.0 // indirect
+	golang.org/x/text v0.25.0 // indirect
 	golang.org/x/time v0.11.0 // indirect
-	golang.org/x/tools v0.30.0 // indirect
+	golang.org/x/tools v0.29.0 // indirect
 	golang.org/x/xerrors v0.0.0-20240903120638-7835f813f4da // indirect
-	google.golang.org/genproto v0.0.0-20250414145226-207652e42e2e // indirect
-	google.golang.org/genproto/googleapis/api v0.0.0-20250414145226-207652e42e2e // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20250414145226-207652e42e2e // indirect
+	google.golang.org/genproto v0.0.0-20250303144028-a0af3efb3deb // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20250505200425-f936aa4a68b2 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20250505200425-f936aa4a68b2 // indirect
 )