fix(docker): update repository label (#5)

Reviewed-on: #5

Dockerfile

@@ -5,6 +5,6 @@ RUN CGO_ENABLED=0 go build -o /go/bin/app
 
 FROM gcr.io/distroless/base-debian13
 LABEL maintainer="Luke Tainton <luke@tainton.uk>"
-LABEL org.opencontainers.image.source="https://gitlab.com/luketainton/insultgen"
+LABEL org.opencontainers.image.source="https://git.tainton.uk/repos/insultgen"
 COPY --from=build /go/bin/app /
 CMD ["/app"]