Fix ~219 spelling mistakes across documentation and source code comments

[mr-raj12]

Fix ~219 spelling mistakes across 92 files in documentation (.rst, .md),
source code comments/docstrings, and CI/build scripts.

Identified using codespell v2.4.1 with a custom ignore list for
project-specific terms, followed by manual review to avoid false positives.

Examples of corrections:

Original	Corrected	Location
compabitility	compatibility	README.rst
environement	environment	multiple files
comparision	comparison	docs/
maintainence	maintenance	CHANGELOG.rst
dependecy	dependency	CHANGELOG.rst
mispelled	misspelled	copyrights.py
ambigious	ambiguous	multiple files
simultaniously	simultaneously	docs/
boostrapping	bootstrapping	etc/scripts/
cheksums	checksums	golang.py + test fixtures

What is NOT changed:

• No code logic, variable names, function names, or class names
• No URLs, file paths, or domain names
• No license rule files (*.RULE), test data, or third-party code
• Intentional non-standard spellings preserved (e.g., exmaple.com junk filter in finder_data.py)

Note: Small overlap with #4712 which also fixes compabitility in README.rst.

Link to Documentation Page

Affects multiple documentation pages including:

• https://scancode-toolkit.readthedocs.io/en/stable/getting-started/contribute/contributing-code.html
• https://scancode-toolkit.readthedocs.io/en/stable/getting-started/contribute/contributing-docs.html
• https://scancode-toolkit.readthedocs.io/en/stable/reference/scancode-cli/cli-basic-options.html
• https://scancode-toolkit.readthedocs.io/en/stable/explanation/scancode-license-detection-updates.html
• And 18+ other documentation pages, plus source code comments in src/

Select Category

• Inconsistency
• New Section Request
• General Improvement
• Typo/Mistakes
• Other

Signed-off-by: Mrityunjay Raj mr.raj.earth@gmail.com