Use 'mvn install' in CI to support archetype integration tests

The archetype integration tests generate a project that depends on the SDK
artifacts being available in the local Maven repository. Using 'install'
instead of 'verify' ensures artifacts are installed before the archetype
tests run.

Author: orpiske

.github/workflows/main-build.yml

@@ -31,4 +31,4 @@ jobs:
         distribution: 'temurin'
         cache: maven
     - name: Build with Maven
-      run: mvn -B verify --file pom.xml
+      run: mvn -B install --file pom.xml

.github/workflows/pr-builds.yml

@@ -52,4 +52,4 @@ jobs:
           distribution: 'temurin'
           cache: maven
       - name: Build with Maven
-        run: mvn -B verify --file pom.xml
+        run: mvn -B install --file pom.xml