Use gitea runner image

Dockerfile

@@ -1,12 +1,8 @@
 # original: https://github.com/William-Yeh/docker-ansible/blob/master/alpine3/Dockerfile
 
-FROM alpine:latest
+FROM gitea/runner-images:ubuntu-latest
 
-RUN echo "===> Adding Python runtime..."  && \
-    apk add --no-cache ansible ansible-lint openssl ca-certificates sshpass openssh-client git curl bash && \
-
-    echo "===> Removing package list..."  && \
-    rm -rf /var/cache/apk/*
+RUN apt update && apt install ansible ansible-lint sshpass
 
 RUN mkdir /ansible