[deps] Update sphinxawesome-theme requirement from ~=5.3.2 to ~=6.0.2

Updates the requirements on [sphinxawesome-theme](https://github.com/kai687/sphinxawesome-theme) to permit the latest version.
- [Release notes](https://github.com/kai687/sphinxawesome-theme/releases)
- [Commits](kai687/sphinxawesome-theme@5.3.2...6.0.2)

---
updated-dependencies:
- dependency-name: sphinxawesome-theme
  dependency-version: 6.0.2
  dependency-type: direct:production
...

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

Author: dependabot[bot]

requirements.txt

@@ -1,5 +1,5 @@
 sphinx~=8.0.2
-sphinxawesome-theme~=5.3.2
+sphinxawesome-theme~=6.0.2
 svglib
 rst2pdf
 pypandoc~=1.17