[CI][Rust] Add publish step (#14)

Author: juharris

.github/workflows/test.yml renamed to .github/workflows/build_test.yml

@@ -1,4 +1,4 @@
-name: "Test"
+name: "Build & Test"
 
 on:
   push:
@@ -50,6 +50,18 @@ jobs:
     - name: "[Rust] [optify] Test"
       run: cargo test --release
       working-directory: ./rust/optify
+    - name: "[Rust] Publish"
+      if: github.ref == 'refs/heads/main'
+      shell: bash
+      # It probably just fails if the crate is already published.
+      # We want to only be lenient for the `cargo publish`, but we would still want to clearly see that an issue happened during the run.
+      continue-on-error: true
+      run: |
+        cargo login
+        cargo publish
+      env:
+        CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}
+      working-directory: ./rust/optify
 
     # Ruby
     # setup-ruby also runs `bundle install`.

.github/workflows/cross-build.yml

@@ -95,7 +95,7 @@ jobs:
       if: github.ref == 'refs/heads/main'
       shell: bash
       # It probably just fails if the gem is already published.
-      # We don't want to only be lenient for the `gem push`, but we would still want to clearly see that an issue happened during the run.
+      # We want to only be lenient for the `gem push`, but we would still want to clearly see that an issue happened during the run.
       continue-on-error: true
       run: |
         set -ex