Bump up GoCD Version to 22.3.0 in file pipeline-as-code/installer-tests.gocd.yaml
Bump up GoCD Version to 22.3.0 in file pipeline-as-code/installer-tests.gocd.yaml

Signed-off-by: GoCD Build User <4578ec8179ef007597ca110be5c4cbfb0145b60b@googlegroups.com>

gocd/installer-testing,gocd/installer-testing