Bump version back to 7.0.0-alpha

[kategengler]

No description provided.

[github-actions]

📊 Package size report   -0%↓

File	Before (Size / Brotli)	After (Size / Brotli)
Total (Includes all files)	17.1 MB / 3.2 MB	-0%↓17.1 MB / -0.01%↓3.2 MB
Tarball size	3.9 MB	-0%↓3.9 MB

_{🤖 This report was automatically generated by pkg-size-action}