build: optimize Dockerfile and update dependencies

- Update base images to golang:1.20-alpine3.17 and alpine:3.17
- Replace `--update-cache` with `--no-cache` in apk add command
- Specify exact versions for make, git, and bash packages

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

Dockerfile

@@ -1,15 +1,15 @@
-FROM golang:alpine as builder
-RUN apk add --update-cache make git
+FROM golang:1.20-alpine3.17 as builder
+RUN apk add --no-cache make=4.3-r1 git=2.38.5-r0
 
 COPY . /opt/src/act_runner
 WORKDIR /opt/src/act_runner
 
 RUN make clean && make build
 
-FROM alpine as runner
-RUN apk add --update-cache \
-    git bash \
-    && rm -rf /var/cache/apk/*
+FROM alpine:3.17
+RUN apk add --no-cache \
+  git=2.38.5-r0 bash=5.2.15-r0 \
+  && rm -rf /var/cache/apk/*
 
 COPY --from=builder /opt/src/act_runner/act_runner /usr/local/bin/act_runner
 COPY run.sh /opt/act/run.sh