CI: Update to actions/checkout@v3
No functional change, but we should keep this current.
diff --git a/.github/workflows/musl.yml b/.github/workflows/musl.yml
index aba3f4e..5a6b46a 100644
--- a/.github/workflows/musl.yml
+++ b/.github/workflows/musl.yml
@@ -13,7 +13,7 @@
container:
image: alpine:latest
steps:
- - uses: actions/checkout@v2
+ - uses: actions/checkout@v3
- name: Install dependencies
run: apk add gcc make tar git python3 libc-dev linux-headers pcre-dev pcre2-dev openssl-dev lua5.3-dev grep socat curl
- name: Install VTest