ci: Release workflow updates for Dockerfile and changelog generation

Dockerfile

@@ -0,0 +1,22 @@
+# Use the official Golang image for building
+FROM golang:1.23 AS builder
+# Set working directory
+WORKDIR /app
+# Copy Go modules and dependencies
+COPY go.mod go.sum ./
+RUN go mod download
+# Copy source code
+COPY . .
+# Build the application
+RUN go build -o gosearch .
+
+# Use a minimal base image for final deployment
+FROM alpine:latest
+# Set working directory in the container
+WORKDIR /root/
+# Copy the built binary from the builder stage
+COPY --from=builder /app/gosearch .
+# Expose the application port
+EXPOSE 3000
+# Run the application
+CMD ["./gosearch"]