Pin Github actions (#43)

Author: jacogr

.github/workflows/auto-approve.yml

@@ -9,7 +9,7 @@ jobs:
     if: "! startsWith(github.event.head_commit.message, '[CI Skip]') && (!github.event.pull_request || github.event.pull_request.head.repo.full_name == github.repository)"
     runs-on: ubuntu-latest
     steps:
-      - uses: jacogr/action-approve@master
+      - uses: jacogr/action-approve@9d6ce78d26f23ad29d009d034822cf773f2cb50e
         with:
           authors: jacogr
           labels: -auto

.github/workflows/auto-merge.yml

@@ -8,7 +8,7 @@ jobs:
   merge:
     runs-on: ubuntu-latest
     steps:
-      - uses: jacogr/action-merge@master
+      - uses: jacogr/action-merge@3b4b49af8a8644bf5cbb5409ee236abe04eeb1b0
         with:
           checks: cache,test
           labels: -auto

.github/workflows/ci-release.yml

@@ -11,8 +11,8 @@ jobs:
     env:
       GH_PAT: ${{ secrets.GH_PAT }}
     steps:
-      - uses: actions/checkout@v2
-      - uses: denoland/setup-deno@v1
+      - uses: actions/checkout@7884fcad6b5d53d10323aee724dc68d8b9096a2e
+      - uses: denoland/setup-deno@004814556e37c54a2f6e31384c9e18e983317366
         with:
           deno-version: vx.x.x
       - name: tag

.github/workflows/pr-any.yml

@@ -9,8 +9,8 @@ jobs:
     name: ${{ matrix.step }}
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
-    - uses: denoland/setup-deno@v1
+    - uses: actions/checkout@7884fcad6b5d53d10323aee724dc68d8b9096a2e
+    - uses: denoland/setup-deno@004814556e37c54a2f6e31384c9e18e983317366
       with:
         deno-version: vx.x.x
     - name: ${{ matrix.step }}