Release 1.4.4

A couple of fixes for EC pools

- Fix a segfault possible on partial EC overwrite in 1234 -> 5030 rebalance scenario
- Fix two problems leading to EC pools stalling on rebalance & parallel sudden stops
  of OSDs, for example during a sudden poweroff of a host:
  - Recovery auto-tuning (1.4.0 feature) could apply too large delays and stall
    the EC journal - fixed by limiting delays with a new recovery_tune_sleep_cutoff_us
    parameter (10 seconds by default) and applying recovery pauses before write
    operations, not after them, to not occupy space in the journal for long time
  - Dynamic journal space reservation (1.3.0 feature) wasn't accounting new writes
    when checking the limit so OSDs could still fill the journal fully and stall -
    fixed by including new writes into the limit
- Print etcd dbSize instead of dbSizeInUse in status

rpm/vitastor-el9.Dockerfile

@@ -18,7 +18,7 @@ ADD . /root/vitastor
 RUN set -e; \
     cd /root/vitastor/rpm; \
     sh build-tarball.sh; \
-    cp /root/vitastor-1.4.3.el9.tar.gz ~/rpmbuild/SOURCES; \
+    cp /root/vitastor-1.4.4.el9.tar.gz ~/rpmbuild/SOURCES; \
     cp vitastor-el9.spec ~/rpmbuild/SPECS/vitastor.spec; \
     cd ~/rpmbuild/SPECS/; \
     rpmbuild -ba vitastor.spec; \