Issue #4185: Too many artifacts fail to upload

Github action for upload was upgraded to v3 recently and the release is
unstable causing too many uploads to fail. Reverting that change to go
back to using v2.

Unfortunately, this change also downgrades use of Node.js to 12 which
is deprecated, generating too many warnings in build output. Favoring
warnings over failed builds.

Signed-off-by: HS <hs@apotell.com>

.github/workflows/hosted.yml

@@ -14,7 +14,7 @@ permissions:
   contents: read
 
 jobs:
-  cpp-builds:
+  cpp-lib-build:
     runs-on: ${{ matrix.os }}
 
     strategy:
@@ -141,12 +141,12 @@ jobs:
       if: always()
       run: |
         cd ${{ github.workspace }}/..
-        tar czfp antlr_${{ matrix.os }}_${{ matrix.compiler }}.tgz antlr4
+        tar czfp antlr_${{ matrix.os }}_${{ matrix.compiler }}.tgz --exclude='.git' antlr4
         mv antlr_${{ matrix.os }}_${{ matrix.compiler }}.tgz ${{ github.workspace }}/.
 
     - name: Archive artifacts
       if: always()
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v2.3.1
       with:
         name: antlr_${{ matrix.os }}_${{ matrix.compiler }}
         path: antlr_${{ matrix.os }}_${{ matrix.compiler }}.tgz
@@ -339,12 +339,12 @@ jobs:
       if: always()
       run: |
         cd ${{ github.workspace }}/..
-        tar czfp antlr_${{ matrix.os }}_${{ matrix.target }}.tgz antlr4
+        tar czfp antlr_${{ matrix.os }}_${{ matrix.target }}.tgz --exclude='.git' antlr4
         mv antlr_${{ matrix.os }}_${{ matrix.target }}.tgz ${{ github.workspace }}/.
 
     - name: Archive artifacts
       if: always()
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v2.3.1
       with:
         name: antlr_${{ matrix.os }}_${{ matrix.target }}
         path: antlr_${{ matrix.os }}_${{ matrix.target }}.tgz