ci: use --locked for cargo install

Author: sbernauer

.github/workflows/pr_cockpit.yml

@@ -118,7 +118,7 @@ jobs:
 
       - name: Update Version
         run: |
-          cargo install cargo-edit --version 0.11.11
+          cargo install --locked cargo-edit --version 0.11.11
           cargo set-version --offline --package stackable-cockpit 0.0.0-pr${{ github.event.pull_request.number }}
 
       # Recreate charts and publish charts and docker image. The "-e" is needed as we want to override the

docker/Dockerfile

@@ -47,7 +47,7 @@ WORKDIR /
 RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain 1.68.2
 ## PATCH: [email protected] uses libcargo 0.64 (Cargo 1.63), while our build uses features from Cargo 1.64
 ## See https://github.com/CycloneDX/cyclonedx-rust-cargo/discussions/416
-#  && . "$HOME/.cargo/env" && cargo install [email protected] [email protected]
+#  && . "$HOME/.cargo/env" && cargo install --locked [email protected] [email protected]
 
 # Build artifacts will be available in /app.
 RUN mkdir /app