chore: bump dockerfile to go1.25

Author: sonirico

Dockerfile

@@ -1,5 +1,5 @@
 # Build stage
-FROM golang:1.23-alpine AS builder
+FROM golang:1.25-alpine AS builder
 
 # Install git for version info
 RUN apk add --no-cache git
@@ -25,7 +25,7 @@ RUN CGO_ENABLED=0 GOOS=linux go build \
     -o mcp-shell .
 
 # Runtime stage
-FROM alpine:3.19
+FROM alpine:3.22
 
 # Install essential packages (fixed package names for Alpine)
 RUN apk add --no-cache \