Javier Palomo 1795cf1573 Prepare CI for our internal release train (#828) ...

* Drone: trigger on weekly release branches

* Update the image-tag to include the branch name on non-tags

* tools/image-tag: use bash

This requires bash to be installed in the alpine/git image

docker run --rm -it --entrypoint /bin/sh alpine/git
/git # bash
/bin/sh: bash: not found
/git # apk --update --no-cache add bash
fetch https://dl-cdn.alpinelinux.org/alpine/v3.13/main/x86_64/APKINDEX.tar.gz
fetch https://dl-cdn.alpinelinux.org/alpine/v3.13/community/x86_64/APKINDEX.tar.gz
(1/2) Installing readline (8.1.0-r0)
(2/2) Installing bash (5.1.0-r0)
Executing bash-5.1.0-r0.post-install
Executing busybox-1.32.1-r6.trigger
OK: 27 MiB in 33 packages
/git # ^C

* Add CHANGELOG entry

2021-07-20 15:01:40 +05:30

..

image-tag

Prepare CI for our internal release train (#828)

2021-07-20 15:01:40 +05:30