src: shave about 20 bytes off each TLSWrap instance

[jasnell]

By shifting from individual bool fields to a packed struct we can save 20 bytes per TLSWrap instance

[nodejs-github-bot]

Review requested:

• @nodejs/crypto

[codecov]

Codecov Report

❌ Patch coverage is 87.75510% with 6 lines in your changes missing coverage. Please review.
✅ Project coverage is 90.30%. Comparing base (a876a12) to head (542fa03).
⚠️ Report is 12 commits behind head on main.

Files with missing lines	Patch %	Lines
src/crypto/crypto_tls.cc	86.11%	0 Missing and 5 partials ⚠️
src/crypto/crypto_tls.h	92.30%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #65144      +/-   ##
==========================================
- Coverage   90.32%   90.30%   -0.02%     
==========================================
  Files         759      759              
  Lines      248325   248331       +6     
  Branches    46861    46862       +1     
==========================================
- Hits       224303   224262      -41     
- Misses      15467    15508      +41     
- Partials     8555     8561       +6     

Files with missing lines	Coverage Δ
src/crypto/crypto_tls.h	87.50% <92.30%> (+5.14%)	⬆️
src/crypto/crypto_tls.cc	78.78% <86.11%> (-0.02%)	⬇️

... and 30 files with indirect coverage changes

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[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/75693/ 💛

[gurgunday]

lgtm