Squash merge develop into master

.github/workflows/buf-publish.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       # Run `git checkout`
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       # Install the `buf` CLI
       - uses: bufbuild/buf-setup-action@v1
       # Push only the Input in `proto` to the BSR
@@ -20,3 +20,17 @@ jobs:
         with:
           input: proto
           buf_token: ${{ secrets.BUF_TOKEN }}
+  upload_pkl:
+    runs-on: ubuntu-latest
+    steps:
+      - name: checkout
+        uses: actions/checkout@v4
+      - name: Upload to R2
+        uses: ryand56/r2-upload-action@latest
+        with:
+          r2-account-id: ${{ secrets.R2_ACCOUNT_ID }}
+          r2-access-key-id: ${{ secrets.R2_ACCESS_KEY_ID }}
+          r2-secret-access-key: ${{ secrets.R2_SECRET_ACCESS_KEY }}
+          r2-bucket: pkljar
+          source-dir: pkl
+          destination-dir: .