Use pangeo-bot to issue auto updating PRs (#8)

* add github action to watch upstream packages

* update package version too

* [test] run everywhere

* no if

* escape

* meta.yml -> meta.yaml, run every five minutes for debugging

* update cron syntax

* update cron freq

* rollback some debugging changes

* fix PR template for k8s

* use pangeo-bot

.github/workflows/watch-conda-forge.yml

@@ -8,11 +8,17 @@ on:
 jobs:
   check-version:
     runs-on: ubuntu-latest
-    if: github.repository == 'conda-forge/pangeo-dask-feedstock'
+    if: github.repository == 'pangeo-bot/pangeo-dask-feedstock'
 
     steps:
       - name: Checkout Repository
         uses: actions/checkout@v2
+        with:
+          ref: 'master'
+        run: |
+          git config user.password ${{ secrets.PAT }}
+          git remote set-url origin https://github.com/pangeo-bot/pangeo-dask-feedstock
+          git fetch --unshallow -p origin
 
       - name: calver
         id: calver
@@ -89,16 +95,23 @@ jobs:
       - name: Create Pull Request
         uses: peter-evans/create-pull-request@v2
         with:
-          token: ${{ secrets.GITHUB_TOKEN }}
           commit-message: "Update pangeo-dask metapackage version(s)"
           title: "Update pangeo-dask metapackage version(s)"
           reviewers: "scottyhq"
           branch: "upgrade-dask-versions"
+          token: ${{ secrets.PAT }}
+          request-to-parent: true
           body: |
-            One or more new Dask package versions have been detected.
+            It is very likely that one or more of the packages in this metapackage are out of date.
 
-            Updated `meta.yaml`s to use:
+            This PR updating one or more the following packages:
                 -  dask =`${{ steps.latest_version_dask.outputs.version }}`
                 -  distributed =`${{ steps.latest_version_distributed.outputs.version }}`
                 -  dask-kubernetes =`${{ steps.latest_version_k8s.outputs.version }}`
                 -  dask-gateway =`${{ steps.latest_version_gateway.outputs.version }}`
+
+            Notes before merging this PR:
+              1. Feel free to push to the bot's branch to update this PR if needed.
+              2. Checklist before merging this PR:
+              - [ ] Dependencies have been updated if changed
+              - [ ] Tests have passed