chore: release 2.2.1

[franklupo]

Summary

Version 2.2.1 (from 2.2.0) and its CHANGELOG section, built from the PRs merged since v2.2.0:

PR	In the CHANGELOG
#140	Fixed: the reason when Proxmox VE refuses a snapshot request; Changed: Corsinvest.ProxmoxVE.Api 9.2.5
#137, #139	Changed: page titles for search results
#138	Changed: docs theme 2.6.2

One more entry under Fixed comes with the 9.2.5 packages and was measured here: a node of --host that does not answer is given up after 4 seconds instead of the TCP timeout of the system.

Patch version: one fix and documentation, no new option.

Compared with the released 2.2.0

The binary of the v2.2.0 release and this build, on the same test cluster:

• Same output and exit code for 12 commands (times and timestamps aside): status as Text, Json and Markdown, dry runs of snap and clean on @all, selections with excluded ranges and pools, storage threshold at 10%, --vmid not found, invalid label and timestamp format, --timeout=0
• With a first --host that does not answer: 22.3 s with 2.2.0, 5.2 s with this build
• Test VM and test labels: three snap with a hook and --keep=2, a duplicate snapshot name (Error in task: ... already used, exit code 1), status as Json, clean --keep=0; test snapshots removed

Not reproduced on the cluster: the refused request of #140 (it needs a token without VM.Snapshot); covered by the 5 tests of RefusedRequestTests.

Checks

• Directory.Build.props 2.2.1; cv4pve-autosnap --version prints 2.2.1
• The awk of cv4pve-tools-publish.yml extracts the ## [2.2.1] section (release notes)
• dotnet format --verify-no-changes, dotnet build -c Release, dotnet test: 113 passed

The tag v2.2.1 (which starts the publish workflow) is not pushed.