chore: update Dockerfile and add Dockerfile linting

- Add `hadolint` action for Dockerfile linting
- Add `.hadolint.yaml` file for ignoring specific linting rules
- Update Dockerfile to use latest versions of dependencies

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>

Author: appleboy

.github/workflows/testing.yml

@@ -28,6 +28,10 @@ jobs:
         with:
           version: latest
           args: --verbose
+      - uses: hadolint/hadolint-action@v3.1.0
+        name: hadolint for Dockerfile
+        with:
+          dockerfile: docker/Dockerfile
 
   testing:
     runs-on: ubuntu-latest

.hadolint.yaml

@@ -0,0 +1,3 @@
+ignored:
+  - DL3018
+  - DL3008

docker/Dockerfile

@@ -12,7 +12,7 @@ LABEL org.opencontainers.image.source=https://github.com/appleboy/CodeGPT
 LABEL org.opencontainers.image.description="A CLI written in Go language that writes git commit messages or do a code review brief for you using ChatGPT AI."
 LABEL org.opencontainers.image.licenses=MIT
 
-RUN apk add --no-cache ca-certificates=20230506-r0 git=2.38.5-r0 && \
+RUN apk add --no-cache ca-certificates git && \
   rm -rf /var/cache/apk/*
 
 COPY release/${TARGETOS}/${TARGETARCH}/codegpt /bin/