chore!: license change to MPL Version 2.0

[michael-0acf4]

Migration notes

All license headers has changed to MPL 2.0.

• The change comes with new or modified tests
• Hard-to-understand functions have explanatory comments
• End-user documentation is updated to reflect the change

[linear]

MET-666 licence change to MPL2

[zifeo]

https://github.com/metatypedev/metatype/blob/met-666-licence-change-to-mpl2/LICENSE.md is worth also to be changed into the text of the MPL2, I like that the issue number is 666 for that change :)

[zifeo]

@michael-0acf4 I would replace the whole file by the MPL2 text, that way GitHub will show the MPL2 directly and no confusion is made with source-available license

[codecov]

Codecov Report

Attention: Patch coverage is 83.33333% with 68 lines in your changes missing coverage. Please review.

Project coverage is 77.47%. Comparing base (18a13d6) to head (31e8bc9).
Report is 6 commits behind head on main.

Files with missing lines	Patch %	Lines
src/typegate/src/runtimes/substantial/agent.ts	48.71%	20 Missing ⚠️
src/typegate/src/engine/typecheck/result.ts	60.00%	14 Missing ⚠️
src/typegate/src/runtimes/substantial.ts	55.00%	9 Missing ⚠️
src/typegate/engine/bindings.ts	85.71%	3 Missing ⚠️
src/typegraph/deno/src/utils/func_utils.ts	0.00%	3 Missing ⚠️
...rc/runtimes/substantial/workflow_worker_manager.ts	84.61%	2 Missing ⚠️
src/typegraph/deno/src/runtimes/python.ts	33.33%	2 Missing ⚠️
src/typegate/src/config.ts	87.50%	1 Missing ⚠️
src/typegate/src/runtimes/graphql.ts	50.00%	1 Missing ⚠️
src/typegate/src/runtimes/grpc.ts	50.00%	1 Missing ⚠️
... and 12 more

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #899   +/-   ##
=======================================
  Coverage   77.46%   77.47%           
=======================================
  Files         149      149           
  Lines       18244    18333   +89     
  Branches     1785     1787    +2     
=======================================
+ Hits        14133    14203   +70     
- Misses       4088     4107   +19     
  Partials       23       23           

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