update email address

Dockerfile

@@ -1,6 +1,6 @@
 FROM python:3.9-alpine
 
-LABEL maintainer="Robert Kaussow <mail@geeklabor.de>" \
+LABEL maintainer="Robert Kaussow <mail@thegeeklab.de>" \
     org.label-schema.name="molecule" \
     org.label-schema.vcs-url="https://gitea.rknet.org/docker/molecule" \
     org.label-schema.vendor="Robert Kaussow" \