bump actions/checkout from 2 to 2.3.4 (via #580)

dependabot[bot] · web-flow · commit f1252b9c4549 · 2021-05-12T13:41:33.000+03:00
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
@@ -18,7 +18,7 @@ jobs:
       matrix:
         java-version: [ '8.0.x', '11.0.x' ]
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v2.3.4
 
       - name: Set up JDK ${{ matrix.java-version }}
         uses: actions/setup-java@v2
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
@@ -8,7 +8,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v2.3.4
 
       - name: Set up JDK 1.8
         uses: actions/setup-java@v2
