ci: bump remaining outdated Actions versions

After activating automatic Dependabot updates in the
git-for-windows/git repository, Dependabot noticed a couple
of yet-unaddressed updates.  They avoid "Node.js 16 Actions"
deprecation messages by bumping the following Actions'
versions:

- actions/upload-artifact from 3 to 4
- actions/download-artifact from 3 to 4
- actions/cache from 3 to 4

Helped-by: Matthias Aßhauer <[email protected]>
Signed-off-by: Johannes Schindelin <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: dscho

.github/workflows/coverity.yml

@@ -98,7 +98,7 @@ jobs:
       # A cache miss will add ~30s to create, but a cache hit will save minutes.
       - name: restore the Coverity Build Tool
         id: cache
-        uses: actions/cache/restore@v3
+        uses: actions/cache/restore@v4
         with:
           path: ${{ runner.temp }}/cov-analysis
           key: cov-build-${{ env.COVERITY_LANGUAGE }}-${{ env.COVERITY_PLATFORM }}-${{ steps.lookup.outputs.hash }}
@@ -141,7 +141,7 @@ jobs:
           esac
       - name: cache the Coverity Build Tool
         if: steps.cache.outputs.cache-hit != 'true'
-        uses: actions/cache/save@v3
+        uses: actions/cache/save@v4
         with:
           path: ${{ runner.temp }}/cov-analysis
           key: cov-build-${{ env.COVERITY_LANGUAGE }}-${{ env.COVERITY_PLATFORM }}-${{ steps.lookup.outputs.hash }}

.github/workflows/main.yml

@@ -123,7 +123,7 @@ jobs:
     - name: zip up tracked files
       run: git archive -o artifacts/tracked.tar.gz HEAD
     - name: upload tracked files and build artifacts
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: windows-artifacts
         path: artifacts
@@ -140,7 +140,7 @@ jobs:
       cancel-in-progress: ${{ needs.ci-config.outputs.skip_concurrent == 'yes' }}
     steps:
     - name: download tracked files and build artifacts
-      uses: actions/download-artifact@v3
+      uses: actions/download-artifact@v4
       with:
         name: windows-artifacts
         path: ${{github.workspace}}
@@ -157,7 +157,7 @@ jobs:
       run: ci/print-test-failures.sh
     - name: Upload failed tests' directories
       if: failure() && env.FAILED_TEST_ARTIFACTS != ''
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: failed-tests-windows
         path: ${{env.FAILED_TEST_ARTIFACTS}}
@@ -212,7 +212,7 @@ jobs:
     - name: zip up tracked files
       run: git archive -o artifacts/tracked.tar.gz HEAD
     - name: upload tracked files and build artifacts
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: vs-artifacts
         path: artifacts
@@ -230,7 +230,7 @@ jobs:
     steps:
     - uses: git-for-windows/setup-git-for-windows-sdk@v1
     - name: download tracked files and build artifacts
-      uses: actions/download-artifact@v3
+      uses: actions/download-artifact@v4
       with:
         name: vs-artifacts
         path: ${{github.workspace}}
@@ -248,7 +248,7 @@ jobs:
       run: ci/print-test-failures.sh
     - name: Upload failed tests' directories
       if: failure() && env.FAILED_TEST_ARTIFACTS != ''
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: failed-tests-windows
         path: ${{env.FAILED_TEST_ARTIFACTS}}
@@ -305,7 +305,7 @@ jobs:
       run: ci/print-test-failures.sh
     - name: Upload failed tests' directories
       if: failure() && env.FAILED_TEST_ARTIFACTS != ''
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: failed-tests-${{matrix.vector.jobname}}
         path: ${{env.FAILED_TEST_ARTIFACTS}}
@@ -353,7 +353,7 @@ jobs:
       run: ci/print-test-failures.sh
     - name: Upload failed tests' directories
       if: failure() && env.FAILED_TEST_ARTIFACTS != '' && matrix.vector.jobname != 'linux32'
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: failed-tests-${{matrix.vector.jobname}}
         path: ${{env.FAILED_TEST_ARTIFACTS}}