CI: upgrade to actions/checkout@v4 (#1370)

Author: pjfanning

.github/workflows/ci.yml

@@ -8,7 +8,7 @@ jobs:
   ci:
     runs-on: self-hosted
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v4
       - run: git fetch -f --depth=1 origin '+refs/tags/*:refs/tags/*'
       - uses: coursier/cache-action@v6
       - uses: coursier/setup-action@v1
@@ -20,7 +20,7 @@ jobs:
   lint:
     runs-on: self-hosted
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v4
       - uses: coursier/cache-action@v6
       - uses: coursier/setup-action@v1
         with:

.github/workflows/release.yml

@@ -11,7 +11,7 @@ jobs:
       JAVA_OPTS: -Xms5120M -Xmx5120M -Xss6M -XX:ReservedCodeCacheSize=256M -Dfile.encoding=UTF-8
       JVM_OPTS: -Xms5120M -Xmx5120M -Xss6M -XX:ReservedCodeCacheSize=256M -Dfile.encoding=UTF-8
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v4
       - run: git fetch -f --depth=1 origin '+refs/tags/*:refs/tags/*'
       - uses: coursier/cache-action@v6
       - uses: coursier/setup-action@v1