Replace <= and >= with single chars

[akeller]

Description

Related to #4560 #2719, the markdown linter didn't like >= or <= in some places🤷‍♀️

When should this change go live?

• This is a bug fix, security concern, or something that needs urgent release support.
• This is already available but undocumented and should be released within a week.
• This on a specific schedule and the assignee will coordinate a release with the DevEx team. (apply hold label or convert to draft PR)
• This is part of a scheduled alpha or minor. (apply alpha or minor label)
• There is no urgency with this change and can be released at any time.

PR Checklist

• My changes are for an already released minor and are in /versioned_docs directory.
• My changes are for the next minor and are in /docs directory (aka /next/).

• My changes require an Engineering review, and I've assigned the Engineering DRI or delegate.
• My changes require a technical writer review, and I've assigned @camunda/tech-writers as a reviewer.

[conceptualshark]

🙌

Is this something that works sometimes, but not others? Should we just have a general recommendation to use single characters for this stuff? 🤔

[akeller]

Is this something that works sometimes, but not others? Should we just have a general recommendation to use single characters for this stuff? 🤔

@conceptualshark great question, I did a very superficial investigation and 1 char escaping (\*, for example)seems to work, but 2 chars didn't. Here is an example of what the MDX compilation failure looks like:

Error: MDX compilation failed for file ".../camunda-docs/versioned_docs/version-8.6/reference/notices.md"
Cause: Unexpected character `=` (U+003D) before name, expected a character that can start a name, such as a letter, `$`, or `_`
Details:
{
  "column": 45,
  "message": "Unexpected character `=` (U+003D) before name, expected a character that can start a name, such as a letter, `$`, or `_`",
  "line": 118,
  "name": "118:45",
  "place": {
    "line": 118,
    "column": 45,
    "offset": 3027,
    "_index": 0,
    "_bufferIndex": 44
  },
  "reason": "Unexpected character `=` (U+003D) before name, expected a character that can start a name, such as a letter, `$`, or `_`",
  "ruleId": "unexpected-character",
  "source": "micromark-extension-mdx-jsx",
  "url": "https://github.com/micromark/micromark-extension-mdx-jsx#unexpected-character-at-expected-expect"
}