fix: don't pull html-to-markdown into the 'all' extra

Since version 2.0 html-to-markdown ships as a Rust extension with prebuilt wheels only for a limited set of platforms (manylinux x86_64/aarch64, macOS, win_amd64). On other targets such as 32-bit Raspberry Pi OS (armv7l) or Alpine/musllinux, pip falls back to a source build that needs a Rust toolchain and fails, which broke 'pip install robotcode[all]'.

html-to-markdown only improves HTML log conversion in the 'results' command and has a built-in stdlib fallback, so it is now opt-in via 'pip install robotcode-runner[html]'.

Fixes #613

Author: d-biehl

pyproject.toml

@@ -64,7 +64,7 @@ replserver = ["robotcode-repl-server==2.6.0"]
 all = [
   "robotcode-debugger==2.6.0",
   "robotcode-language-server==2.6.0",
-  "robotcode-runner[html]==2.6.0",
+  "robotcode-runner==2.6.0",
   "robotcode-analyze==2.6.0",
   "robotcode-repl==2.6.0",
   "robotcode-repl-server==2.6.0",