chore(ci): update Maven commands to use -Dmaven.test.skip=true for consistency

Author: SteKoe

.github/copilot-instructions.md

@@ -15,9 +15,9 @@ Always reference these instructions first and fallback to search or bash command
 ### Building the Project
 - **NEVER CANCEL builds - they take time but will complete successfully**
 - **CRITICAL**: Set timeout to 20+ minutes for builds, 60+ minutes for tests
-- Clean compile: `export PATH="/tmp/node-v22.18.0-linux-x64/bin:$PATH" && ./mvnw clean compile -B --no-transfer-progress -DskipTests` -- takes ~10.5 minutes
-- Full package: `export PATH="/tmp/node-v22.18.0-linux-x64/bin:$PATH" && ./mvnw package -B --no-transfer-progress -DskipTests` -- takes ~4 minutes  
-- Install to local repository: `export PATH="/tmp/node-v22.18.0-linux-x64/bin:$PATH" && ./mvnw install -B --no-transfer-progress -DskipTests` -- takes ~1.5 minutes
+- Clean compile: `export PATH="/tmp/node-v22.18.0-linux-x64/bin:$PATH" && ./mvnw clean compile -B --no-transfer-progress -Dmaven.test.skip=true` -- takes ~10.5 minutes
+- Full package: `export PATH="/tmp/node-v22.18.0-linux-x64/bin:$PATH" && ./mvnw package -B --no-transfer-progress -Dmaven.test.skip=true` -- takes ~4 minutes  
+- Install to local repository: `export PATH="/tmp/node-v22.18.0-linux-x64/bin:$PATH" && ./mvnw install -B --no-transfer-progress -Dmaven.test.skip=true` -- takes ~1.5 minutes
 
 ### Testing
 - **NEVER CANCEL test runs - set 60+ minute timeouts**
@@ -101,7 +101,7 @@ Always reference these instructions first and fallback to search or bash command
 ## Development Workflow
 1. **Setup**: Configure Node.js 22.18.0 in PATH: `export PATH="/tmp/node-v22.18.0-linux-x64/bin:$PATH"`
 2. **Initial Build**: Run `./mvnw clean compile` to verify everything builds (~10.5 minutes - be patient)
-3. **Install Dependencies**: Run `./mvnw install -DskipTests` for sample app dependencies (~1.5 minutes)
+3. **Install Dependencies**: Run `./mvnw install -Dmaven.test.skip=true` for sample app dependencies (~1.5 minutes)
 4. **Make Changes**: Edit code in appropriate modules
 5. **Format Code**: Run `./mvnw spring-javaformat:apply` and UI `npm run format:fix`
 6. **Test Build**: Run build commands to verify changes don't break anything
@@ -146,4 +146,4 @@ spring-boot-admin/                    # Root project (19 modules)
 ├── spring-boot-admin-starter-*/     # Spring Boot auto-configuration
 ├── mvnw                            # Maven wrapper
 └── pom.xml                         # Root Maven configuration
-```
+```

.github/workflows/build-main.yml

@@ -36,7 +36,6 @@ jobs:
 
       - name: Build with Maven (parallel modules)
         run: ./mvnw -B -T 1C --no-transfer-progress install -P coverage
-        # -T 1C = 1 thread per CPU core for parallel module builds
 
       - name: Upload surefire reports
         if: always()
@@ -56,7 +55,7 @@ jobs:
         uses: codecov/codecov-action@v6
 
       - name: Publish SNAPSHOT version to GitHub Packages
-        run: ./mvnw -B -T 1C deploy --no-transfer-progress -DskipTests
+        run: ./mvnw -B -T 1C deploy --no-transfer-progress -Dmaven.test.skip=true
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 

.github/workflows/deploy-documentation.yml

@@ -48,7 +48,7 @@ jobs:
         run: ./mvnw versions:set "-DnewVersion=${{ github.event.inputs.releaseversion }}" --no-transfer-progress
 
       - name: Build with Maven (parallel modules)
-        run: ./mvnw -B -T 1C --no-transfer-progress package -DskipTests
+        run: ./mvnw -B -T 1C --no-transfer-progress package -Dmaven.test.skip=true
 
       - name: Build documentation with Maven
         run: ./mvnw -B --no-transfer-progress  -pl spring-boot-admin-docs site

.github/workflows/release-to-maven-central.yml

@@ -54,7 +54,7 @@ jobs:
         run: ./mvnw versions:set "-DnewVersion=${{ github.event.inputs.releaseversion }}" --no-transfer-progress
 
       - name: Publish package (parallel modules)
-        run: ./mvnw -B -T 1C deploy --no-transfer-progress -P central-deploy -DskipTests
+        run: ./mvnw -B -T 1C deploy --no-transfer-progress -P central-deploy -Dmaven.test.skip=true
         env:
           #TODO: This is a workaround for NEXUS-27902 which uses XStream that fails on JVM >16
           JDK_JAVA_OPTIONS: "--add-opens java.base/java.util=ALL-UNNAMED --add-opens java.base/java.lang.reflect=ALL-UNNAMED --add-opens java.base/java.text=ALL-UNNAMED --add-opens java.desktop/java.awt.font=ALL-UNNAMED"