CI: Update to actions/checkout@v3

No functional change, but we should keep this current.

(cherry picked from commit 5f4ddb54b05ae0355b1f64c22263a6bc381410df)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
(cherry picked from commit 1e9260500eb71943dcd5f1329550f98d0be08a47)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
diff --git a/.github/workflows/compliance.yml b/.github/workflows/compliance.yml
index 4696c06..ae14fdd 100644
--- a/.github/workflows/compliance.yml
+++ b/.github/workflows/compliance.yml
@@ -18,7 +18,7 @@
     env:
       H2SPEC_VERSION: '2.6.0'
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v3
     - name: Install h2spec
       run: |
         curl -fsSL https://github.com/summerwind/h2spec/releases/download/v${H2SPEC_VERSION}/h2spec_linux_amd64.tar.gz -o h2spec.tar.gz