Log Message:
tex-siunitx{,-doc}: update to 3.0.9

3.0.9
### Changed
- Documentation improvements
- Add a hint for formatting regression tables

### Fixed
- Suppress some spurious overfull box warnings
- Issue an error with `output-product`
- Rounding of uncertainties falling in the integer part
- Printing in text mode for compound quantities
- Correctly handle `\protect` in literal units
- Interpretation of uncertainties in integers

3.0.8
### Changed
- Documentation improvements
- Add `\barn`, `\knot`, `\mmHg`, `\nauticalmile` to list of
  deprecated units
- Provide a fallback route for deprecated units

### Fixed
- Correct printing of `10^{0}`
- Emulation of `group-four-digits`

3.0.7
### Fixed
- Formatting of some literal units
- Issue a warning for removed option `load-configurations`
- Printing of `\times` and `\cdot` in text mode when using a
  locale
- Implement missing `output-exponent-marker`

3.0.6
### Changed
- Documentation improvements

### Fixed
- Avoid error if `forbid-literal-units` is set in the preamble
- Format separate uncertainty correctly where it falls purely
  in the integer part