CI: Upgrade checkout action from v2 to v3.

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f08becb97cfaa9e32bba46cd33de2833bb9e79cf..d00dd0d2acb86d07d29addbb8fb9d69a8be2f317 100644 (file)
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -27,7 +27,7 @@ jobs:
         build_system: [autotools, cmake]
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
       ########################
       # Install Dependencies #