ci: upgrade to Maven 3.9.9

Author: sebthom

.github/workflows/build.yml

@@ -164,7 +164,7 @@ jobs:
     - name: "Install: Maven"
       uses: stCarolas/setup-maven@v5  # https://github.com/stCarolas/setup-maven
       with:
-        maven-version: 3.9.8
+        maven-version: 3.9.9
 
 
     - name: "Build with Maven 🔨"

.github/workflows/licensecheck.yml

@@ -82,7 +82,7 @@ jobs:
     - name: "Install: Maven"
       uses: stCarolas/setup-maven@v5  # https://github.com/stCarolas/setup-maven
       with:
-        maven-version: 3.9.8
+        maven-version: 3.9.9
 
 
     - name: Dash License check  # see https://github.com/eclipse/dash-licenses