go version and deps update, fixed middlewares and metrics

- fixed "API JWT secret empty" warning output format
- fixed metrics initialized when it should not
- fixed middlewares.modifyRequest Host header not working properly

Dockerfile

@@ -1,5 +1,5 @@
 # Stage 1: Builder
-FROM golang:1.23.2-alpine AS builder
+FROM golang:1.23.3-alpine AS builder
 RUN apk add --no-cache tzdata make
 
 WORKDIR /src