Do not include the whole Gradle cache in GH Actions caches

We don't need the whole cache, since most (all?) of it is stored on
Develocity already.

Including ./gradle/caches/modules-2 is enough, because that's where
Maven dependencies are stored, and *those* are not stored on Develocity.

(cherry picked from commit 013bb46)

Author: yrodiere

.github/workflows/ci-report.yml

@@ -37,13 +37,13 @@ jobs:
           echo "buildtool-monthly-cache-key=${ROOT_CACHE_KEY}-${CURRENT_MONTH}" >> $GITHUB_OUTPUT
           echo "buildtool-monthly-branch-cache-key=${ROOT_CACHE_KEY}-${CURRENT_MONTH}-${CURRENT_BRANCH}" >> $GITHUB_OUTPUT
           echo "buildtool-cache-key=${ROOT_CACHE_KEY}-${CURRENT_MONTH}-${CURRENT_BRANCH}-${CURRENT_DAY}" >> $GITHUB_OUTPUT
-      - name: Restore Maven/Gradle Local Caches
+      - name: Restore Maven/Gradle Dependency/Dist Caches
         uses: actions/cache/restore@v4
         with:
           path: |
             ~/.m2/repository/
             ~/.m2/wrapper/
-            ~/.gradle/caches/
+            ~/.gradle/caches/modules-2
             ~/.gradle/wrapper/
           key: ${{ steps.cache-key.outputs.buildtool-cache-key }}
           restore-keys: |

.github/workflows/ci.yml

@@ -72,7 +72,7 @@ jobs:
           echo "buildtool-monthly-cache-key=${ROOT_CACHE_KEY}-${CURRENT_MONTH}" >> $GITHUB_OUTPUT
           echo "buildtool-monthly-branch-cache-key=${ROOT_CACHE_KEY}-${CURRENT_MONTH}-${CURRENT_BRANCH}" >> $GITHUB_OUTPUT
           echo "buildtool-cache-key=${ROOT_CACHE_KEY}-${CURRENT_MONTH}-${CURRENT_BRANCH}-${CURRENT_DAY}" >> $GITHUB_OUTPUT
-      - name: Cache Maven/Gradle Local Caches
+      - name: Cache Maven/Gradle Dependency/Dist Caches
         id: cache-maven
         uses: actions/cache@v4
         # if it's not a pull request, we restore and save the cache
@@ -81,7 +81,7 @@ jobs:
           path: |
             ~/.m2/repository/
             ~/.m2/wrapper/
-            ~/.gradle/caches/
+            ~/.gradle/caches/modules-2
             ~/.gradle/wrapper/
           # A new cache will be stored daily. After that first store of the day, cache save actions will fail because the cache is immutable but it's not a problem.
           # The whole cache is dropped monthly to prevent unlimited growth.
@@ -90,15 +90,15 @@ jobs:
           restore-keys: |
             ${{ steps.cache-key.outputs.buildtool-monthly-branch-cache-key }}-
             ${{ steps.cache-key.outputs.buildtool-monthly-cache-key }}-
-      - name: Restore Maven/Gradle Local Caches
+      - name: Restore Maven/Gradle Dependency/Dist Caches
         uses: actions/cache/restore@v4
         # if it a pull request, we restore the cache but we don't save it
         if: github.event_name == 'pull_request'
         with:
           path: |
             ~/.m2/repository/
             ~/.m2/wrapper/
-            ~/.gradle/caches/
+            ~/.gradle/caches/modules-2
             ~/.gradle/wrapper/
           key: ${{ steps.cache-key.outputs.buildtool-cache-key }}
           restore-keys: |
@@ -181,7 +181,7 @@ jobs:
           echo "buildtool-monthly-cache-key=${ROOT_CACHE_KEY}-${CURRENT_MONTH}" >> $GITHUB_OUTPUT
           echo "buildtool-monthly-branch-cache-key=${ROOT_CACHE_KEY}-${CURRENT_MONTH}-${CURRENT_BRANCH}" >> $GITHUB_OUTPUT
           echo "buildtool-cache-key=${ROOT_CACHE_KEY}-${CURRENT_MONTH}-${CURRENT_BRANCH}-${CURRENT_DAY}" >> $GITHUB_OUTPUT
-      - name: Cache Maven/Gradle Local Caches
+      - name: Cache Maven/Gradle Dependency/Dist Caches
         id: cache-maven
         uses: actions/cache@v4
         # if it's not a pull request, we restore and save the cache
@@ -190,7 +190,7 @@ jobs:
           path: |
             ~/.m2/repository/
             ~/.m2/wrapper/
-            ~/.gradle/caches/
+            ~/.gradle/caches/modules-2
             ~/.gradle/wrapper/
           # A new cache will be stored daily. After that first store of the day, cache save actions will fail because the cache is immutable but it's not a problem.
           # The whole cache is dropped monthly to prevent unlimited growth.
@@ -199,15 +199,15 @@ jobs:
           restore-keys: |
             ${{ steps.cache-key.outputs.buildtool-monthly-branch-cache-key }}-
             ${{ steps.cache-key.outputs.buildtool-monthly-cache-key }}-
-      - name: Restore Maven/Gradle Local Caches
+      - name: Restore Maven/Gradle Dependency/Dist Caches
         uses: actions/cache/restore@v4
         # if it a pull request, we restore the cache but we don't save it
         if: github.event_name == 'pull_request'
         with:
           path: |
             ~/.m2/repository/
             ~/.m2/wrapper/
-            ~/.gradle/caches/
+            ~/.gradle/caches/modules-2
             ~/.gradle/wrapper/
           key: ${{ steps.cache-key.outputs.buildtool-cache-key }}
           restore-keys: |