Update to v4 GitHub Actions for up/download of artifacts.

Author: bleargh45

.github/workflows/perl-ci.yml

@@ -39,14 +39,14 @@ jobs:
         run: dzil build
 
       - name: Upload tarball artifact
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: tarball
           path: "*.gz"
 
       - name: Archive CPM logs
         if: ${{ failure() }}
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: build.log
           path: ~/.perl-cpm/build.log*
@@ -81,7 +81,7 @@ jobs:
 
     steps:
       - name: Download tarball artifact
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: tarball
 
@@ -107,7 +107,7 @@ jobs:
 
       - name: Archive CPANM logs
         if: ${{ failure() }}
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: build.log
           path: ~/.cpanm/work/*/build.log