refactor(analyze): add language field to rule metadata

[dyc3]

Summary

This adds a new language field to RuleMetadata so we can emit better docs for end users.

closes #2801

For the sake of being comprehensive, this is the python script I used to do the codemod for all the existing rules:

Codemod

from pathlib import Path
import os
import sys

os.chdir(sys.path[0])

target_dir = Path("crates/biome_css_analyze/src/lint/")


def process_file(file_path: Path):
	with file_path.open("r") as f:
		lines = f.readlines()
	is_rule = False
	rule_name_line = None
	rule_source = None
	lang_likely = None
	for line_number, line in enumerate(lines):
		if "///" in line:
			if not lang_likely:
				if "```jsx" in line:
					lang_likely = "jsx"
				elif "```tsx" in line:
					lang_likely = "tsx"
				elif "```ts" in line:
					lang_likely = "ts"
				elif "```js" in line:
					lang_likely = "js"
				elif "```css" in line:
					lang_likely = "css"
			continue
		if "language: " in line:
			print("language already exists")
			return

		if "declare_rule! {" in line:
			is_rule = True
		if not rule_name_line and "name: " in line:
			rule_name_line = line_number
		if not rule_source and "sources: " in line:
			rule_source = line
		if rule_name_line is not None and rule_source is not None:
			break

	if not is_rule:
		print("not a rule")
		return

	lang_to_insert = None
	if not rule_source:
		rule_source = ""
	if "EslintReact" in rule_source:
		lang_to_insert = "jsx"
	elif "EslintJsxA11y" in rule_source:
		lang_to_insert = "jsx"
	elif "EslintTypeScript" in rule_source:
		lang_to_insert = "ts"
	elif "EslintJest" in rule_source:
		lang_to_insert = "js"
	elif "::Eslint(" in rule_source:
		lang_to_insert = "js"
	elif "Stylelint" in rule_source:
		lang_to_insert = "css"
	elif "type" in lines[rule_name_line]:
		lang_to_insert = "ts"
	else:
		lang_to_insert = lang_likely

	print("rule", lines[rule_name_line], lang_likely, lang_to_insert)
	if lang_to_insert is not None:
		lines.insert(rule_name_line + 1, f"        language: \"{lang_to_insert}\",\n")
		with file_path.open("w") as f:
			f.writelines(lines)

for file in target_dir.glob("**/*.rs"):
	process_file(file)

Test Plan

If it builds, it should work.

[ematipico]

This looks to me. @Conaclos, what do you think? I'd like your opinion

[codspeed-hq]

CodSpeed Performance Report

Merging #2811 will not alter performance

_{Comparing dyc3:05-10-refactor_analyze_add_language_field_to_rule_metadata (0230679) with main (7245146)}

Summary

✅ 97 untouched benchmarks

[dyc3]

does the new field need to be added to codegen?

[ematipico]

does the new field need to be added to codegen?

Yeah, otherwise the macro will fail

[ematipico]

We should update the contribution guide to reflect the new changes

[dyc3]

I've updated the codegen and the contributing guide.