Bump actions/checkout from 2 to 3.1.0

Bumps [actions/checkout](https://github.com/actions/checkout) from 2 to 3.1.0.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions/checkout/compare/v2...v3.1.0)

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

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

.github/workflows/Glibc.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     container: docker.io/centos:7
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
 
     - name: Install dependencies
       run: |

.github/workflows/boringtun.yml

@@ -12,7 +12,7 @@ jobs:
         target: [ aarch64-apple-darwin, x86_64-apple-darwin, s390x-unknown-linux-gnu, aarch64-unknown-linux-gnu, x86_64-unknown-linux-gnu ]
     steps:
       - name: Check code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
       - name: Git clone BoringTun
         run: |
           git clone https://github.com/cloudflare/boringtun

.github/workflows/p.yml

@@ -12,7 +12,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@master
+        uses: actions/checkout@v3
         with:
           fetch-depth: 0
 

.github/workflows/sync_project.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: 'Checkout'
-        uses: actions/checkout@v1
+        uses: actions/checkout@v3
       - name: 'Mirror to gitlab'
         uses: pixta-dev/repository-mirroring-action@v1
         with:
@@ -26,7 +26,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: 'Checkout'
-        uses: actions/checkout@v1
+        uses: actions/checkout@v3
       - name: 'Mirror to bitbucket'
         uses: pixta-dev/repository-mirroring-action@v1
         with:
@@ -39,7 +39,7 @@ jobs:
 #    runs-on: ubuntu-latest
 #    steps:
 #      - name: 'Checkout'
-#        uses: actions/checkout@v1
+#        uses: actions/checkout@v3
 #      - name: 'Mirror to gitee'
 #        uses: pixta-dev/repository-mirroring-action@v1
 #        with:

.github/workflows/vmessping.yml

@@ -15,7 +15,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@master
+        uses: actions/checkout@v3
         with:
           fetch-depth: 0
 

.github/workflows/wireguard-go.yml

@@ -15,7 +15,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@master
+        uses: actions/checkout@v3
         with:
           fetch-depth: 0
 

.github/workflows/wireguard-go_version.yml

@@ -16,7 +16,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@master
+        uses: actions/checkout@v3
         with:
           fetch-depth: 0
 

.github/workflows/wireproxy.yml

@@ -17,7 +17,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@master
+        uses: actions/checkout@v3
         with:
           fetch-depth: 0