Add support for tar on Windows

action.yml

@@ -14,6 +14,7 @@ runs:
   steps:
     - name: Archive artifact
       shell: bash
+      if: runner.os != 'Windows'
       run: |
         tar \
           --dereference --hard-dereference \
@@ -22,6 +23,21 @@ runs:
           --exclude=.git \
           --exclude=.github \
           .
+
+    # Massage the paths for Windows only
+    - name: Archive artifact
+      shell: bash
+      if: runner.os == 'Windows'
+      run: |
+        tar \
+          --dereference --hard-dereference \
+          --directory "${{ inputs.path }}" \
+          -cvf "${{ runner.temp }}\artifact.tar" \
+          --exclude=.git \
+          --exclude=.github \
+          --force-local \
+          "."
+
     - name: Upload artifact
       uses: actions/upload-artifact@main
       with: