Update CI to use Alpine package manager (apk)

- Replace apt-get commands with apk for Alpine Linux compatibility
- Use 'apk add --no-cache protobuf-dev protoc' instead of apt-get
- Updated in all CI jobs: test, lint, and build
- Fixes package installation for Alpine-based CI runners

.github/workflows/ci.yml

@@ -35,8 +35,7 @@ jobs:
 
       - name: Install protoc and plugins
         run: |
-          apt-get update
-          apt-get install -y protobuf-compiler
+          apk add --no-cache protobuf-dev protoc
           go install google.golang.org/protobuf/cmd/protoc-gen-go@latest
           go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@latest
 
@@ -100,8 +99,7 @@ jobs:
 
       - name: Install protoc and plugins
         run: |
-          apt-get update
-          apt-get install -y protobuf-compiler
+          apk add --no-cache protobuf-dev protoc
           go install google.golang.org/protobuf/cmd/protoc-gen-go@latest
           go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@latest
 
@@ -146,8 +144,7 @@ jobs:
 
       - name: Install protoc and plugins
         run: |
-          apt-get update
-          apt-get install -y protobuf-compiler
+          apk add --no-cache protobuf-dev protoc
           go install google.golang.org/protobuf/cmd/protoc-gen-go@latest
           go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@latest