🚀 Prepare 0.7.3 release

[s-weigand]

This PR prepares the code base for the 0.7.3 release.

Change summary

• 🚧 Bump version from 0.7.2 to 0.7.3
• 📚🩹 Add release date of 0.7.0 to changelog
• 📚🩹 Add PR nr for ASV benchmark drop

Checklist

• [x] ✔️ Passing the tests (mandatory for all PR's)

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[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 88.8%. Comparing base (2c88dce) to head (c43d18c). Report is 25 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1519 +/- ## ======================================= + Coverage 88.6% 88.8% +0.1% ======================================= Files 107 109 +2 Lines 5128 5245 +117 Branches 962 983 +21 ======================================= + Hits 4544 4658 +114 Misses 468 468 - Partials 116 119 +3 ```

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[jsnel]

Reminder to self, still change "## 🚀 0.7.3 (Not released)" to the release data, probably 2024-08-25.

[sonarcloud[bot]]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud