Update actions/checkout action to v4

Author: renovate[bot]

.github/workflows/ci.yml

@@ -16,7 +16,7 @@ jobs:
         os: [ubuntu-latest]
         java: [8, 11, 17]
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: actions/setup-java@v3
         with:
           distribution: "temurin"
@@ -29,7 +29,7 @@ jobs:
     runs-on: ubuntu-latest
     name: Benchmark tests
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: actions/setup-java@v3
         with:
           distribution: "temurin"
@@ -46,7 +46,7 @@ jobs:
       matrix:
         os: [ubuntu-latest]
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
 
       - uses: actions/setup-java@v3
         with:
@@ -77,7 +77,7 @@ jobs:
   bazel:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - run: yarn global add @bazel/bazelisk
       - run: bazel build //... --//semanticdb-javac:enabled=true
       - run: bazel run scip-semanticdb:bazel -- --sourceroot "$PWD"
@@ -92,7 +92,7 @@ jobs:
   bazel_aspect:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - run: yarn global add @bazel/bazelisk
       - run: sbt cli/pack
       - run: echo "$PWD/scip-java/target/pack/bin" >> $GITHUB_PATH
@@ -110,7 +110,7 @@ jobs:
   check:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: actions/setup-java@v3
         with:
           distribution: "temurin"

.github/workflows/mdoc.yml

@@ -7,7 +7,7 @@ jobs:
   publish:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
       - uses: actions/setup-java@v3

.github/workflows/release-docker.yml

@@ -8,7 +8,7 @@ jobs:
   publish:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
       - uses: actions/setup-java@v3

.github/workflows/release-maven.yml

@@ -7,7 +7,7 @@ jobs:
   publish:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
       - uses: actions/setup-java@v3

.github/workflows/sourcegraph.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     name: "Upload SCIP"
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0