Update gradle/gradle-build-action digest to 04b20c0

Author: renovate[bot]

.github/workflows/gradle.yml

@@ -47,6 +47,6 @@ jobs:
           java-version: '17'
           distribution: 'temurin'
       - name: Build with Gradle
-        uses: gradle/gradle-build-action@fdcea9a1bd0ddacf64a442506f0b7259c52f84b9
+        uses: gradle/gradle-build-action@04b20c065cf1ab708c96e64a8811018d0a1fbc88
         with:
           arguments: ${{ matrix.target }}

.github/workflows/new-maven-central.yml

@@ -52,7 +52,7 @@ jobs:
           java-version: '17'
           distribution: 'temurin'
       - name: Gradle publish
-        uses: gradle/gradle-build-action@fdcea9a1bd0ddacf64a442506f0b7259c52f84b9
+        uses: gradle/gradle-build-action@04b20c065cf1ab708c96e64a8811018d0a1fbc88
         with:
           arguments: |
             ${{ matrix.target }}