docker-compose: Update to version 2.6.0

docker-compose: Update to version 2.6.0

What's Changed:

 - fix TestLocalComposeUp which fail locally and bump compose-go to
 1.2.7 by @glours
 - attach only to services declared by project applying profiles by
 @ndeloof
 - Add ddev's e2e test by @ulyssessouza
 - Fix local run of make e2e-compose-standalone by @ulyssessouza
 - fix: prevent flickering prompt when pulling same image from N
 services by @maxcleme
 - add tags property to build section by @glours
 - update golang version to 1.18 by @glours
 - bump compose-go to 1.2.6 by @maxcleme
 - add e2e tests to verify env variables priority by @glours
 - Import dotenv file to os environment by @ulyssessouza

New Contributors:

 - @maxcleme made their first contribution

Signed-off-by: Javier Marcet <javier@marcet.info>