Fix covscan issues

Use nanosec precision for timestamp of checksum cache

Update to 1.14.2
Reduce time to load metadata
Fix resource leaks and memory leaks
Remove build dependency on python3-flask

Recover from fsync fail on read-only filesystem (RhBug:1956361)

Update to 1.14.0
Fix the key string parsing in url_substitution
When zchunk enabled and not using HTTP/S protocol, download the whole file (RhBug:1886706)
Add an option LRO_SSLVERIFYSTATUS to check TLS certificate revocation status (using OCSP stapling) (RhBug:1814383)
Fix: lr_perform() - Avoid 100% CPU usage
Add support for working with certificates used with proxy
Reposync does not re-download unchanged packages (RhBug:1931904)
Fix memory leaks

Add support for pkcs11 certificate and key for repository authorization (RhBug:1859495)

Validate paths read from repomd.xml (RhBug:1866505)

Update to 1.12.0
Decode package URL when using for local filename (RhBug:1817130)
Fix memory leak in lr_download_metadata() and lr_yum_download_remote()
Download sources work when at least one of specified is working (RhBug:1775184)
Enable building on OSX

Update to 1.11.3
Prefer mirrorlist/metalink over baseurl (RhBug:1775184)
Fix calling Python API without holding GIL (RhBug:1788918)
Do not unref LrErr_Exception on exit (RhBug:1778854)

Create a directory for gpg sockets in /run/user/ (RhBug:1769831,1771012)

Update to 1.11.0
Retry mirrorlist/metalink downloads several times (RhBug:1741931)
Improve variable substitutions in URLs and add ${variable} support

Update to 1.10.6
Imporove handling of xattr to re-download damadged files (RhBug:1690894)
Rephrase repository GPG check error message (RhBug:1741442)
Add sleep before next try when all mirrors were tried (RhBug:1741931)
Raise logging level of error messages (RhBug:1737709)
Handle webservers that don't support ranges when downloading zck
Define LRO_SUPPORTS_CACHEDIR only with zchunk (RhBug:1726141)
Allow to use mirrors multiple times for a target (RhBug:1678588)
Allow to try baseurl multiple times (RhBug:1678588)

Backport patch: Fix: Verification of checksum from file attr

Backport patch: Define LRO_SUPPORTS_CACHEDIR only with zchunk (RhBug:1726141,1719830)

Update to 1.10.3
Exit gpg-agent after repokey import (RhBug:1650266)

Update to 1.10.1
Reduce download delays
Add an option to preserve timestamps of the downloaded files (RhBug:1688537)
Append the '?' part of repo URL after the path
Fix memory leaks