Fix manual integration test build

Author: adangel

.ci/build.sh

@@ -15,7 +15,8 @@ function build() {
     pmd_ci_log_group_end
 
     pmd_ci_log_group_start "Install dependencies"
-        gem install --user-install bundler
+        # bundler should already be installed
+        bundle --version
         bundle config set --local path vendor/bundle
         bundle install
     pmd_ci_log_group_end

.ci/manual-integration-tests.sh

@@ -15,7 +15,8 @@ function build() {
     pmd_ci_log_group_end
 
     pmd_ci_log_group_start "Install dependencies"
-        gem install --user-install bundler
+        # bundler should already be installed
+        bundle --version
         bundle config set --local path vendor/bundle
         bundle install
     pmd_ci_log_group_end

.github/workflows/manual-integration-tests.yml

@@ -23,16 +23,16 @@ jobs:
         key: v3-${{ runner.os }}-${{ hashFiles('pmdtester.gemspec') }}
         restore-keys: |
           v3-${{ runner.os }}-
-    - name: Set up Ruby 2.7
+    - name: Set up Ruby 3.3
       uses: ruby/setup-ruby@v1
       with:
-        ruby-version: 2.7
+        ruby-version: 3.3
     - name: Setup Environment
       shell: bash
       run: |
         echo "LANG=en_US.UTF-8" >> $GITHUB_ENV
         echo "MAVEN_OPTS=-Dmaven.wagon.httpconnectionManager.ttlSeconds=180 -Dmaven.wagon.http.retryHandler.count=3" >> $GITHUB_ENV
-        echo "PMD_CI_SCRIPTS_URL=https://raw.githubusercontent.com/pmd/build-tools/17/scripts" >> $GITHUB_ENV
+        echo "PMD_CI_SCRIPTS_URL=https://raw.githubusercontent.com/pmd/build-tools/master/scripts" >> $GITHUB_ENV
     - name: Check Environment
       shell: bash
       run: |