Upgrades Build

[juanpedromoreno]

This PR:

• Replaces sbt-org-policies
• Updates dependencies
• Migrates README to mdoc (still pending to do the same for the docs, but I'm planning to do in a separate PR).
• Updates examples to the latest versions of the libraries.

Closes #282
Closes #255
Closes #285

[BenFradet]

👍

[codecov]

Codecov Report

Merging #284 into master will decrease coverage by 24.73%.
The diff coverage is 81.66%.

@@             Coverage Diff             @@
##           master     #284       +/-   ##
===========================================
- Coverage   93.19%   68.45%   -24.74%     
===========================================
  Files           6        8        +2     
  Lines         191      298      +107     
  Branches        6        3        -3     
===========================================
+ Hits          178      204       +26     
- Misses         13       94       +81     

Impacted Files	Coverage Δ
debug/shared/src/main/scala/debug.scala	0.00% <0.00%> (ø)
debug/shared/src/main/scala/document.scala	0.00% <ø> (ø)
shared/src/main/scala/log.scala	66.66% <ø> (ø)
shared/src/main/scala/syntax.scala	100.00% <ø> (ø)
shared/src/main/scala/fetch.scala	91.00% <88.15%> (-2.03%)	⬇️
shared/src/main/scala/cache.scala	100.00% <100.00%> (ø)
shared/src/main/scala/datasource.scala	100.00% <100.00%> (ø)
shared/src/main/scala/execution.scala	100.00% <100.00%> (ø)

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