jobs/osmocom-build-tags…: fix workspace clean

As this job tries to archive the build logs after running, don't remove
the entire workspace. Instead remove the paths that take up the most
space, which are the one with the git clones and build artifacts (_deps)
as well as the one with the temporary installation dirs (_temp/_inst*).

Fixes: b20e8e8b ("jobs/various: clean workspace on success")
Change-Id: Ied86ba80b38a9b10a7a96631e6dedee9f3762c3b
---
M jobs/osmocom-build-tags-against-master.yml
1 file changed, 19 insertions(+), 2 deletions(-)

diff --git a/jobs/osmocom-build-tags-against-master.yml b/jobs/osmocom-build-tags-against-master.yml
index 8ae4a63..b242103 100644
--- a/jobs/osmocom-build-tags-against-master.yml
+++ b/jobs/osmocom-build-tags-against-master.yml
@@ -33,8 +33,10 @@
             "$USER/debian-bookworm-build" \
             scripts/osmocom-build-old-tags-against-master.sh
 
-          # Remove workspace on success to free up space
-          rm -rf "$WORKSPACE"
+          # Remove git repos and build results on success to free up space
+          # Logs are kept
+          rm -rf "$WORKSPACE"/_deps
+          rm -rf "$WORKSPACE"/_temp/_inst*
     scm:
       - git:
           branches:

