libhttpserver 2.0.1

Security release fixing GHSA-q8g6-h8wv-pr43, an unauthenticated denial of service caused by unnamed multipart file uploads. Upgrade from 2.0.0 to 2.0.1.

• Fixed CI lint annotations for libcurl-required long types in the
  raw multipart upload regression helper.
• Fixed an unauthenticated server crash when a multipart file part omits
  the name attribute. Unnamed file parts are ignored before memory
  or disk upload handling. Thanks to Allen Yen (@tntrock) for the private report.
• Corrected the documentation include path and graph font configuration.
• Fixed release-note extraction on macOS and made the ABI packaging gate
  use the configured patch version while retaining SONAME 2.