chore: make server-check a workspace member

Author: weihanglo

.github/workflows/main.yml

@@ -185,7 +185,8 @@ jobs:
     - run: rustup component add rust-docs
     - run: ci/validate-man.sh
     # This requires rustfmt, use stable.
-    - run: cd src/doc/semver-check && cargo +stable run
+    - name: Run semver-check
+      run: cargo +stable run -p semver-check
     - run: |
         mkdir mdbook
         curl -Lf https://github.com/rust-lang/mdBook/releases/download/v0.4.27/mdbook-v0.4.27-x86_64-unknown-linux-gnu.tar.gz | tar -xz --directory=./mdbook

Cargo.lock

@@ -25,7 +25,7 @@ const SEPARATOR: &str = "///////////////////////////////////////////////////////
 fn doit() -> Result<(), Box<dyn Error>> {
     let filename = std::env::args()
         .nth(1)
-        .unwrap_or_else(|| "../src/reference/semver.md".to_string());
+        .unwrap_or_else(|| "src/doc/src/reference/semver.md".to_string());
     let contents = fs::read_to_string(filename)?;
     let mut lines = contents.lines().enumerate();