sync: update CI config files (#170)

Co-authored-by: web3-bot <web3-bot@users.noreply.github.com>

Author: web3-bot

.github/workflows/automerge.yml

@@ -0,0 +1,53 @@
+# File managed by web3-bot. DO NOT EDIT.
+# See https://github.com/protocol/.github/ for details.
+
+# Automatically merge pull requests opened by web3-bot, as soon as (and only if) all tests pass.
+# This reduces the friction associated with updating with our workflows.
+
+on: [ pull_request ]
+name: Automerge
+
+jobs:
+  automerge-check:
+    if: github.event.pull_request.user.login == 'web3-bot'
+    runs-on: ubuntu-latest
+    outputs:
+      status: ${{ steps.should-automerge.outputs.status }}
+    steps:
+    - uses: actions/checkout@v2
+      with:
+        fetch-depth: 0
+    - name: Check if we should automerge
+      id: should-automerge
+      run: |
+        for commit in $(git rev-list --first-parent origin/${{ github.event.pull_request.base.ref }}..${{ github.event.pull_request.head.sha }}); do
+          committer=$(git show --format=$'%ce' -s $commit)
+          echo "Committer: $committer"
+          if [[ "$committer" != "web3-bot@users.noreply.github.com" ]]; then
+            echo "Commit $commit wasn't committed by web3-bot, but by $committer."
+            echo "::set-output name=status::false"
+            exit
+          fi
+        done
+        echo "::set-output name=status::true"
+  automerge:
+    needs: automerge-check
+    runs-on: ubuntu-latest
+    # The check for the user is redundant here, as this job depends on the automerge-check job,
+    # but it prevents this job from spinning up, just to be skipped shortly after.
+    if: github.event.pull_request.user.login == 'web3-bot' && needs.automerge-check.outputs.status == 'true'
+    steps:
+    - name: Wait on tests
+      uses: lewagon/wait-on-check-action@bafe56a6863672c681c3cf671f5e10b20abf2eaa # v0.2
+      with:
+        ref: ${{ github.event.pull_request.head.sha }}
+        repo-token: ${{ secrets.GITHUB_TOKEN }}
+        wait-interval: 10
+        running-workflow-name: 'automerge' # the name of this job
+    - name: Merge PR
+      uses: pascalgn/automerge-action@741c311a47881be9625932b0a0de1b0937aab1ae # v0.13.1
+      env:
+        GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
+        MERGE_LABELS: ""
+        MERGE_METHOD: "squash"
+        MERGE_DELETE_BRANCH: true

.github/workflows/js-test-and-release.yml

@@ -1,11 +1,14 @@
+# File managed by web3-bot. DO NOT EDIT.
+# See https://github.com/protocol/.github/ for details.
+
 name: test & maybe release
 on:
   push:
     branches:
-      - master
+      - master # with #262 - ${{{ github.default_branch }}}
   pull_request:
     branches:
-      - master
+      - master # with #262 - ${{{ github.default_branch }}}
 
 jobs:
 
@@ -133,9 +136,9 @@ jobs:
   release:
     needs: [test-node, test-chrome, test-chrome-webworker, test-firefox, test-firefox-webworker, test-electron-main, test-electron-renderer]
     runs-on: ubuntu-latest
-    if: github.event_name == 'push' && github.ref == 'refs/heads/master'
+    if: github.event_name == 'push' && github.ref == 'refs/heads/master' # with #262 - 'refs/heads/${{{ github.default_branch }}}'
     steps:
-      - uses: actions/checkout@v2.4.0
+      - uses: actions/checkout@v2
         with:
           fetch-depth: 0
       - uses: actions/setup-node@v2