fixup! ci: only run the expensive tests in the Windows tests for now

Now that -rc0 is out and no longer adding pressure, let's _actually_
re-enable the expensive tests on Windows.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

Author: dscho

ci/lib.sh

@@ -321,7 +321,7 @@ export SKIP_DASHED_BUILT_INS=YesPlease
 # enable the long tests for pushes to the integration branches as well.
 test -z "$MSYSTEM" ||
 case "$GITHUB_EVENT_NAME,$CI_BRANCH" in
-pull_request,*|push,*next*|push,*master*|push,*maint*)
+pull_request,*|push,*next*|push,*master*|push,*main*|push,*maint*)
 	export GIT_TEST_LONG=YesPlease
 	;;
 esac