add NiFi 2.4.0 and remove 2.2.0

Author: labrenbe

docs/modules/nifi/pages/usage_guide/updating.adoc

@@ -24,7 +24,7 @@ NiFi clusters cannot be upgraded or downgraded in a rolling fashion due to a lim
 When upgrading between NiFi 1 versions or from NiFi 1 to NiFi 2, any change to the NiFi version in the CRD triggers a full cluster restart with brief downtime.
 However, the Stackable image version can be updated in a rolling manner, provided the NiFi version remains unchanged.
 
-For upgrades between NiFi 2 versions, e.g. from `2.0.0` to `2.2.0`, rolling upgrades are supported.
+For upgrades between NiFi 2 versions, e.g. from `2.0.0` to `2.4.0`, rolling upgrades are supported.
 ====
 
 == NiFi 2.0.0

docs/modules/nifi/partials/supported-versions.adoc

@@ -2,7 +2,7 @@
 // This is a separate file, since it is used by both the direct NiFi-Operator documentation, and the overarching
 // Stackable Platform documentation.
 
-* 2.2.0 (experimental) - Please note that you need to upgrade to at least 1.27.x before upgrading to 2.x.x!
+* 2.4.0 (experimental) - Please note that you need to upgrade to at least 1.27.x before upgrading to 2.x.x!
 * 1.28.1
 * 1.27.0 (LTS)
 

tests/test-definition.yaml

@@ -4,25 +4,25 @@ dimensions:
     values:
       - 1.27.0
       - 1.28.1
-      - 2.2.0
+      - 2.4.0
       # Alternatively, if you want to use a custom image, append a comma and the full image name to the product version
       # as in the example below.
-      # - 2.2.0,oci.stackable.tech/sandbox/nifi:2.2.0-stackable0.0.0-dev
+      # - 2.4.0,oci.stackable.tech/sandbox/nifi:2.4.0-stackable0.0.0-dev
   - name: nifi_old
     values:
       - 1.27.0
   - name: nifi_new
     values:
-      - 2.2.0
+      - 2.4.0
       # Alternatively, if you want to use a custom image, append a comma and the full image name to the product version
       # as in the example below.
-      # - 2.2.0,oci.stackable.tech/sandbox/nifi:2.2.0-stackable0.0.0-dev
+      # - 2.4.0,oci.stackable.tech/sandbox/nifi:2.4.0-stackable0.0.0-dev
   - name: nifi-latest
     values:
-      - 2.2.0
+      - 2.4.0
       # Alternatively, if you want to use a custom image, append a comma and the full image name to the product version
       # as in the example below.
-      # - 2.2.0,oci.stackable.tech/sandbox/nifi:2.2.0-stackable0.0.0-dev
+      # - 2.4.0,oci.stackable.tech/sandbox/nifi:2.4.0-stackable0.0.0-dev
   - name: zookeeper
     values:
       - 3.9.3