Update aiida-core requirement from ~=2.2.1 to ~=2.2.2

Updates the requirements on [aiida-core](https://github.com/aiidateam/aiida-core) to permit the latest version.
- [Release notes](https://github.com/aiidateam/aiida-core/releases)
- [Changelog](https://github.com/aiidateam/aiida-core/blob/main/CHANGELOG.md)
- [Commits](aiidateam/aiida-core@v2.2.1...v2.2.2)

---
updated-dependencies:
- dependency-name: aiida-core
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

requirements.txt

@@ -1,5 +1,5 @@
 optimade[server]~=0.20.3
-aiida-core~=2.2.1
+aiida-core~=2.2.2
 pymatgen>=2019.7.2,!=2019.9.7,<2023.1.31
 
 # Dependencies used directly in this package, but included through other dependencies: