Ignore [maven-release-plugin] in workflows

changes for #78

.github/workflows/build_artifact.yml

@@ -13,6 +13,7 @@ concurrency:
 env:
   java_version: 8
   java_distribution: 'temurin'
+  maven-release-plugin-prefix: '[maven-release-plugin]'
 
 jobs:
   build_artifact:
@@ -41,6 +42,7 @@ jobs:
           path: ./target/*.jar
 
   run_tests:
+    if: !contains(github.event.head_commit.message, env.maven-release-plugin-prefix)
     name: Run Tests & Report
     runs-on: ubuntu-latest
     needs: build_artifact
@@ -74,6 +76,7 @@ jobs:
           path: 'target/surefire-reports/*.xml'
 
   run_hello_world_Linux:
+    if: !contains(github.event.head_commit.message, env.maven-release-plugin-prefix)
     name: Run Hello World (Linux)
     runs-on: ubuntu-latest
     needs: run_tests
@@ -89,6 +92,7 @@ jobs:
         run: ./hello_world.sh
 
   run_hello_world_Windows:
+    if: !contains(github.event.head_commit.message, env.maven-release-plugin-prefix)
     name: Run Hello World (Windows)
     runs-on: windows-latest
     needs: run_tests

.github/workflows/checkstyle.yml

@@ -7,6 +7,7 @@ on:
 
 jobs:
   run_checkstyle:
+    if: !contains(github.event.head_commit.message, '[maven-release-plugin]')
     name: Run Checkstyle
     runs-on: ubuntu-latest
     steps:

.github/workflows/release.yml

@@ -6,7 +6,7 @@ on:
 
 jobs:
   Prepare-and-Release:
-    if: "!contains(github.event.head_commit.message, '[maven-release-plugin]')"
+    if: !contains(github.event.head_commit.message, '[maven-release-plugin]')
     name: Prepare and Release
     runs-on: ubuntu-latest
 

.github/workflows/update_documentation.yml

@@ -8,6 +8,7 @@ on:
 
 jobs:
   build_documentation:
+    if: !contains(github.event.head_commit.message, '[maven-release-plugin]')
     name: Build Documentation
     runs-on: ubuntu-latest
     steps:
@@ -42,7 +43,7 @@ jobs:
 
   push_documentation_to_gh-pages:
     name: Push Documentation to gh-pages
-    if: github.event_name == 'push'
+    if: github.event_name == 'push' && !contains(github.event.head_commit.message, '[maven-release-plugin]')
     needs: build_documentation
     runs-on: ubuntu-latest