test(e2e): drop csi-pvc-local — storage-only auto-mkfs needs follow-up

Live validation on the piraeus interop lane showed csi-pvc-local
hanging at PVC=Pending: linstor-csi created the RD/VD/placement, then
csi-provisioner timed out and DeleteVolume'd the slot in a loop.
The DRBD-replicated test (csi-pvc-replicated-rwo) PASSed cleanly,
confirming the DRBD auto-mkfs path works end-to-end against linstor-csi
through blockstor's apiserver.

The storage-only auto-mkfs commit (8b48347) was reverted in the
preceding commit because the runStorageOnlyMkfs hook never reached
PVC=Bound on the live stand even though all 14 TestApplyAutoMkfs*
unit tests stayed green. The shape of the wedge points at the
linstor-csi placement → satellite handshake (no fsck error surfaced
on the node side — Pod stayed at FailedMount "PVC is not bound").
Needs a focused investigation against the actual linstor-csi v1.10.1
NodePublishVolume flow before re-introducing.

Drop the failing scenario and pin only the working DRBD path so PR
#35 lands clean as workflow+test infrastructure. Storage-only PVC
support tracked as follow-up.

Co-Authored-By: Claude <noreply@anthropic.com>
Signed-off-by: Andrei Kvapil <kvapss@gmail.com>

Author: kvaps

.github/workflows/pull-request.yml

@@ -239,7 +239,7 @@ jobs:
       # `e2e-piraeus` job below, which installs piraeus in EXTERNAL mode
       # against blockstor's apiserver (no upstream Java linstor-controller).
       # ci-e2e.sh drops these from the discovered suite.
-      E2E_EXCLUDE: "rwx-ganesha observability-three-way observability-capacity-correlation csi-pvc-local csi-pvc-replicated-rwo"
+      E2E_EXCLUDE: "rwx-ganesha observability-three-way observability-capacity-correlation csi-pvc-replicated-rwo"
     permissions:
       contents: read
       checks: write
@@ -366,7 +366,7 @@ jobs:
         # LANE=1 LANES=1 → the single lane runs every listed scenario;
         # ci-e2e.sh honours INSTALL_PIRAEUS=1 (job env) to deploy piraeus
         # after blockstor so these scenarios have the stack they drive.
-        run: make ci-e2e LANE=1 LANES=1 SCENARIOS="rwx-ganesha observability-three-way observability-capacity-correlation csi-pvc-local csi-pvc-replicated-rwo"
+        run: make ci-e2e LANE=1 LANES=1 SCENARIOS="rwx-ganesha observability-three-way observability-capacity-correlation csi-pvc-replicated-rwo"
 
       - name: Upload e2e logs
         if: always()