Cherry-pick PRs to the 4.1.x release

[shaobo-he-aws]

Description of changes

• improve CommonTypeId interface #1199
• Update smol_str requirement from 0.2 to 0.3 #1181
• Revert "implement schema-format parsers for RFC 68 (#1136)" #1202
• implement schema parsers for RFC 82 #1204
• fix accepting tags as an attr name #1209
• hide RFC 82 implementation behind entity-tags crate feature #1211
• add getTag and hasTag operations to AST, EST, policy parser, and evaluator #1207
• refactor validator tests #1215
• handle RFC 82 entity tags in entity JSON parsing, including schema-based #1213
• Add get_entity_literals to api.rs #1149
• add tests for reserved keywords in policies #1223
• update formatter to add trailing newline #1220
• support hasTag() and getTag() in the validator #1218
• Limit the size of arbitrarily generated Names #1228
• Tweak constructor to avoid re-building attrs Map #1230
• Add function to get SDK and Lang version #1219

[khieta]

Is there a reason you can't directly use main as 4.1? I think that would make things easier to keep track of, moving forward.

[shaobo-he-aws]

Is there a reason you can't directly use main as 4.1? I think that would make things easier to keep track of, moving forward.

I'm concerned if there's anything that shouldn't be released in main. Like Oliver's work.

[khieta]

I'm concerned if there's anything that shouldn't be released in main. Like Oliver's work.

Wouldn't it be easier to just revert #1102 ?

[shaobo-he-aws]

I'm concerned if there's anything that shouldn't be released in main. Like Oliver's work.

Wouldn't it be easier to just revert #1102 ?

Good point.