[WIP] Update string encoding to retain angle brackets

[Copilot]

Thanks for asking me to work on this. I will get started on it and keep this PR's description up to date as I form a plan and make progress.

Original prompt

When encoding strings, this function escapes some characters using Unicode escape sequences: replacing <, >, &, U+2028, and U+2029 with \u003c, \u003e, \u0026, \u2028, and \u2029. This is to preserve compatibility with Terraform 0.11 behavior.

How not to have this replaced and keep the angle bracket as is

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