libwebsockets: update libwebsockets to v4.2-stable

[codingspirit]

Signed-off-by: zhiqinli@amazon.com zhiqinli@amazon.com

Issue #, if available:
#1147
In libwebsockets v3.2.3, there is a memory access violation issue when use mbedtls with certificates, @ycyang1229 managed to fix this via:
warmcat/libwebsockets#2304
this PR has been merged into libwebsockets main and v4.2-stable branch. Without this patch, using mbedtls with iot certificates will always failed.
Description of changes:
Similar to #1152 , this changes will update libwebsockets to v4.2-stable. This update will fix #1147, and replace old ws_ping_pong_interval with new lws_retry_bo_t to manage ping behaviors, which was introduced since libwebsockets v4.+.

ref: https://libwebsockets.org/git/libwebsockets/tree/READMEs/README.lws_retry.md

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.

[codecov-commenter]

Codecov Report

Merging #1187 (3f3aa3d) into master (0a58284) will decrease coverage by 28.29%.
The diff coverage is 50.00%.

@@             Coverage Diff             @@
##           master    #1187       +/-   ##
===========================================
- Coverage   85.84%   57.54%   -28.30%     
===========================================
  Files          42       42               
  Lines       10587    10591        +4     
===========================================
- Hits         9088     6095     -2993     
- Misses       1499     4496     +2997     

Impacted Files	Coverage Δ
src/source/Signaling/Signaling.c	11.32% <50.00%> (-83.77%)	⬇️
src/source/Crypto/Tls.c	0.00% <0.00%> (-100.00%)	⬇️
src/source/Ice/TurnConnection.c	0.00% <0.00%> (-93.47%)	⬇️
src/source/Signaling/ChannelInfo.c	0.00% <0.00%> (-88.03%)	⬇️
src/source/Signaling/LwsApiCalls.c	1.34% <0.00%> (-82.67%)	⬇️
src/source/Crypto/Tls_openssl.c	0.00% <0.00%> (-82.65%)	⬇️
src/source/Signaling/StateMachine.c	0.00% <0.00%> (-81.71%)	⬇️
src/source/Ice/SocketConnection.c	50.90% <0.00%> (-28.83%)	⬇️
src/source/Signaling/FileCache.c	73.87% <0.00%> (-23.43%)	⬇️
... and 10 more

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[hassanctech]

Can you please change this to the latest release that just went out and we can quickly get this merged:

https://github.com/warmcat/libwebsockets/releases/tag/v4.2.1

[agrexgh]

@codingspirit
I've got the errors like below on 0be0979.
Do you have any headers not committed?
It seems they are the reference to new members of struct.

../src/source/Signaling/Signaling.c:17:10: error: ‘lws_retry_bo_t’ {aka ‘const struct lws_retry_bo’} has no member named ‘secs_since_valid_ping’
../src/source/Signaling/Signaling.c:101:17: error: ‘struct lws_context_creation_info’ has no member named ‘retry_and_idle_policy’

[disa6302]

@agrexgh ,

Please run git clean -ffxd from the repo root to delete the open-source And build directory and rebuild

[agrexgh]

@disa6302
Thank you I'll try it soon!

[agrexgh]

@disa6302
The erros disappeared, thanks!