chore: bump actions/checkout from 2 to 3

Bumps [actions/checkout](https://github.com/actions/checkout) from 2 to 3.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v2...v3)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/build_coder_image.yaml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out the repo
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
       - name: Login to DockerHub
         uses: docker/login-action@v1
         with:

.github/workflows/ci.yaml

@@ -37,7 +37,7 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           fetch-depth: 0
 

.github/workflows/preview.yaml

@@ -31,7 +31,7 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - name: Checkout m
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           repository: cdr/m
           ref: refs/heads/master

.github/workflows/production.yml

@@ -32,7 +32,7 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - name: Checkout m
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           repository: cdr/m
           ref: refs/heads/master