Make MedusaRestoreJob properly match nodes when restoring in-place

[rzvoncek]

What this PR does:
This PR adds a sorting of nodes in a given rack when working out a mapping of nodes to create a restore job. This way it's deterministic and we don't end up mappng nodes 1-2-3 to 1-3-2 etc.

Which issue(s) this PR fixes:
Fixes #1060 .

Checklist

• Changes manually tested
• Automated Tests added/updated
• Documentation added/updated
• CHANGELOG.md updated (not required for documentation PRs)
• CLA Signed: DataStax CLA

[sonarqubecloud]

SonarCloud Quality Gate failed.   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
6 Code Smells

No Coverage information
0.0% Duplication

Catch issues before they fail your Quality Gate with our IDE extension SonarLint

[codecov]

Codecov Report

Merging #1076 (22f6a6d) into main (31fb6cd) will decrease coverage by 0.06%.
Report is 3 commits behind head on main.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main    #1076      +/-   ##
==========================================
- Coverage   57.31%   57.26%   -0.06%     
==========================================
  Files         100      100              
  Lines       10160    10162       +2     
==========================================
- Hits         5823     5819       -4     
- Misses       3828     3832       +4     
- Partials      509      511       +2     

Files	Coverage Δ
pkg/medusa/hostmap.go	54.16% <100.00%> (+0.55%)	⬆️

... and 2 files with indirect coverage changes