diff --git a/.github/workflows/build-feature.yml b/.github/workflows/build-feature.yml
index 7fd26db823f..41ffa85c4ba 100644
--- a/.github/workflows/build-feature.yml
+++ b/.github/workflows/build-feature.yml
@@ -6,10 +6,10 @@ on:
       - master
       - 1.*
       - 2.*
+  pull_request:
 
 jobs:
   build:
-
     strategy:
       matrix:
         os: [ubuntu-latest]
@@ -17,6 +17,15 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
 
+      - name: free disk space
+        run: |
+          df -h
+          sudo swapoff -a
+          sudo rm -f /swapfile
+          sudo apt clean
+          docker rmi $(docker image ls -aq)
+          df -h
+
       - uses: actions/checkout@v4
 
       - name: Set up JDK 17
diff --git a/.github/workflows/build-pullrequest.yml b/.github/workflows/build-pullrequest.yml
deleted file mode 100644
index 0edad7d8bde..00000000000
--- a/.github/workflows/build-pullrequest.yml
+++ /dev/null
@@ -1,42 +0,0 @@
-name: build pull requests
-
-on:
-  pull_request:
-
-jobs:
-  build:
-    strategy:
-      matrix:
-        os: [ubuntu-latest]
-
-    runs-on: ${{ matrix.os }}
-    steps:
-
-      - uses: actions/checkout@v4
-
-      - name: Set up JDK 17
-        uses: actions/setup-java@v4
-        with:
-          distribution: 'temurin'
-          java-version: '17'
-          cache: 'maven'
-
-      - name: Cache node modules
-        uses: actions/cache@v4
-        env:
-          cache-name: cache-node-modules
-        with:
-          path: ~/.npm
-          key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('**/package-lock.json') }}
-          restore-keys: |
-            ${{ runner.os }}-build-${{ env.cache-name }}-
-
-      # since we also build on Windows Powershell, we need to add a space between -D maven.javadoc.skip=true
-      # otherwise the build will fail https://stackoverflow.com/questions/38051787/maven-javadoc-skip-true-throws-an-error
-      - name: Build with Maven
-        run: |
-          mvn -B verify -P coverage --no-transfer-progress -D maven.javadoc.skip=true
-
-      - uses: codecov/codecov-action@v4
-        with:
-          files: "'*/jacoco.xml'"
diff --git a/.github/workflows/release-to-maven-central.yml b/.github/workflows/release-to-maven-central.yml
index 10186adf747..a429ad6c6fc 100644
--- a/.github/workflows/release-to-maven-central.yml
+++ b/.github/workflows/release-to-maven-central.yml
@@ -19,6 +19,15 @@ jobs:
     steps:
       - run: echo "Will start a Maven Central upload with version ${{ github.event.inputs.releaseversion }}"
 
+      - name: free disk space
+        run: |
+          df -h
+          sudo swapoff -a
+          sudo rm -f /swapfile
+          sudo apt clean
+          docker rmi $(docker image ls -aq)
+          df -h
+
       - uses: actions/checkout@v4
 
       - name: Set up settings.xml for Maven Central Repository
@@ -80,6 +89,15 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
+      - name: free disk space
+        run: |
+          df -h
+          sudo swapoff -a
+          sudo rm -f /swapfile
+          sudo apt clean
+          docker rmi $(docker image ls -aq)
+          df -h
+
       - name: Generate changelog
         id: changelog
         uses: metcalfc/changelog-generator@v4.3.1