chore: bump handler-base to v0.1.5, add netrc secret mount to Dockerfile

Dockerfile

@@ -4,11 +4,14 @@ FROM golang:1.25-alpine AS builder
 WORKDIR /app
 
 # Install ca-certificates for HTTPS
-RUN apk add --no-cache ca-certificates
+RUN apk add --no-cache ca-certificates git
+
+ENV GOPRIVATE=git.daviestechlabs.io
+ENV GONOSUMCHECK=git.daviestechlabs.io
 
 # Copy go mod files
 COPY go.mod go.sum ./
-RUN go mod download
+RUN --mount=type=secret,id=netrc,target=/root/.netrc go mod download
 
 # Copy source code
 COPY . .