breaking: Remove dependency on streams polyfill

[jimmywarting]

The purpose of this PR is:

• To remove the dependency on web streams polyfill
• Update LTS supported NodeJS version as to use web streams directly from NodeJS instead
• bump engines.node to >=16.7 (16.5 received web streams... 16.7 got buffer.Blob.stream() included)
• remove CHANGELOG.md and instead start using github releases to craft new changes based on merged PRs

---

• I prefixed the PR-title with docs: , fix(area): , feat(area): or breaking(area):
• I updated the README.md
• I Added unit test(s)

---

• fix fix(blob-stream): Bump major web stream polyfill v4 #116
• fix Possibility to remove web-streams-polyfill dependency? #135

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (main@57e4dae). Click here to learn what that means.
Patch has no changes to coverable lines.

Additional details and impacted files

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  Files           ?        3           
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  Hits            ?      429           
  Misses          ?       29           
  Partials        ?        0           

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[jimmywarting]

ping @LinusU

[gr2m]

How are releases created?

[jimmywarting]

there is no automated flow in this repo.
everything is done manually atm