[PHP.wasm] Upgrade emscripten version from 4.0.5 to 4.0.19

[mho22]

Motivation for the change

We need this pull request in order for our PHP.wasm build to be built without RELOCATABLE and avoid size increases when building with MAIN_MODULE. The pull request is in 4.0.19 release.

Implementation details

PHP.wasm

• Modified emscripten version in base-image Dockerfile.
• Removed setErrNo and malloc from EXPORT_RUNTIME_FUNCTIONS
• Replaced setErrNo by __errno_location in phpwasm-emscripten-library
• Replaced PHPLoader["free"] with _free in phpwasm-emscripten-library
• Bound wasmExports['free'] in PHPLoader['free']
• Bound wasmExports['malloc'] in PHPLoader['malloc']
• Removed fd_close from JSPI_IMPORTS and JSPI_EXPORTS due to SuspendError: trying to suspend JS frames
• Ignored default.profraw file in .gitignore
• Added __funcs_on_exit function in JSPI_EXPORTS for PHP7.4 and PHP7.3
• Modified patches related to signature mismatch in zend_list_free_wrapper in PHP7.4 and PHP7.3

✅ make all
✅ node_modules/.bin/nx reset && npm run recompile:php:node:jspi:all
✅ node_modules/.bin/nx reset && node_modules/.bin/nx run php-wasm-compile:xdebug:jspi:all
✅ node_modules/.bin/nx reset && node_modules/.bin/nx run php-wasm-compile-shared:intl:jspi:all 

🟡 node_modules/.bin/nx reset && npm run recompile:php:node:asyncify:all
〇 node_modules/.bin/nx reset && node_modules/.bin/nx run php-wasm-compile:xdebug:asyncify:all
〇 node_modules/.bin/nx reset && node_modules/.bin/nx run php-wasm-compile-shared:intl:asyncify:all

〇 node_modules/.bin/nx reset && npm run recompile:php:web:jspi:all
〇 node_modules/.bin/nx reset && npm run recompile:php:web:asyncify:all

Testing Instructions (or ideally a Blueprint)

CI