Github actions: Update cache action to version 3

Fixes deprecation warning in build process:

"Node.js 12 actions are deprecated. For more information see:
https://github.blog/changelog/2022-09-22-github-actions-all-actions-will-begin-running-on-node16-instead-of-node12/.
Please update the following actions to use Node.js 16: actions/checkout,
jurplel/install-qt-action, actions/cache,
EthanSK/git-branch-name-action, actions/cache, actions/checkout"

.github/workflows/android_release.yml

@@ -74,7 +74,7 @@ jobs:
           message("::set-output name=timestamp::${current_date}")
 
       - name: ccache cache files
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path:         ~/.ccache
           key:          ${{ runner.os }}-ccache-${{steps.ccache_cache_timestamp.outputs.timestamp}}

.github/workflows/linux_debug.yml

@@ -57,7 +57,7 @@ jobs:
           message("::set-output name=timestamp::${current_date}")
 
       - name: ccache cache files
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path:         ~/.ccache
           key:          ${{ runner.os }}-ccache-${{steps.ccache_cache_timestamp.outputs.timestamp}}

.github/workflows/linux_release.yml

@@ -66,7 +66,7 @@ jobs:
           message("::set-output name=timestamp::${current_date}")
 
       - name: ccache cache files
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path:         ~/.ccache
           key:          ${{ runner.os }}-ccache-${{steps.ccache_cache_timestamp.outputs.timestamp}}

.github/workflows/macos_release.yml

@@ -65,7 +65,7 @@ jobs:
           message("::set-output name=timestamp::${current_date}")
 
       - name: ccache cache files
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path:         ~/.ccache
           key:          ${{ runner.os }}-ccache-${{steps.ccache_cache_timestamp.outputs.timestamp}}