docs: add missing pre-requisites for building crates

[jpraynaud]

Content

This PR includes the missing pre-requisites for building crates:

• build-essential and m4 tools were missing.

Pre-submit checklist

• Branch
  • [x] Commit sequence broadly makes sense
  • [x] Key commits have useful messages
• PR
  • [x] No clippy warnings in the CI
  • [x] Self-reviewed the diff
  • [x] Useful pull request description
  • [x] Reviewer requested
• Documentation
  • [x] Update documentation website (if relevant)

[github-actions[bot]]

Test Results

    3 files  ±0     43 suites  ±0   8m 29s :stopwatch: -11s 1 028 tests ±0  1 028 :white_check_mark: ±0  0 :zzz: ±0  0 :x: ±0  1 126 runs  ±0  1 126 :white_check_mark: ±0  0 :zzz: ±0  0 :x: ±0 

Results for commit 05a2b99c. ± Comparison against base commit f390dfb2.