fix: Property names with special characters in Kotlin SDK

[mistryrakesh]

This PR fixes generation of kotlin classes which handle properties having special characters.

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Fixes #837 🦕

[github-actions]

Codegen Tests

0 files   -   1  0 suites   - 6   0s ⏱️ -57s
0 tests  - 58  0 ✔️  - 46  0 💤  - 12  0 ❌ ±0 

Results for commit 7f8838d. ± Comparison against base commit 4d1f789.

This pull request removes 58 tests.

Declaration miner should mine files matching the probe settings ‑ Declaration miner should mine files matching the probe settings
example mining CodeMiner ignores comments and ok ‑ example mining CodeMiner ignores comments and ok
example mining CodeMiner ignores ok and finds kotlin calls ‑ example mining CodeMiner ignores ok and finds kotlin calls
example mining CodeMiner ignores ok and finds ts calls ‑ example mining CodeMiner ignores ok and finds ts calls
example mining CodeMiner is empty for no sdk calls ‑ example mining CodeMiner is empty for no sdk calls
example mining CodeMiner mines a python file ‑ example mining CodeMiner mines a python file
example mining CodeMiner mines a ruby file ‑ example mining CodeMiner mines a ruby file
example mining CodeMiner mines a swift file ‑ example mining CodeMiner mines a swift file
example mining CodeMiner mines a typescript file ‑ example mining CodeMiner mines a typescript file
example mining MarkdownMiner accepts a source code file ‑ example mining MarkdownMiner accepts a source code file
…

[github-actions]

Codegen Tests

  1 files  ±0    6 suites  ±0   55s ⏱️ -2s
58 tests ±0  46 ✔️ ±0  12 💤 ±0  0 ❌ ±0 

Results for commit 6052426. ± Comparison against base commit 4d1f789.

[jkaster]

LGTM. Thanks for the quick fix!