github-actions: update actions/checkout from v2 to v3 (sony#377)

This change updates actions/checkout version from v2 to v3.

Signed-off-by: Hidenori Matsubayashi <[email protected]>

Author: HidenoriMatsubayashi

.github/workflows/build-test.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
 
     - name: Install libraries
       run: |