Fix python artifact build

PHP: add ares as deps

defer grpc_init and background threads until first grpc object init

Build for more versions of electron, restrict when a Windows warning is shown

In all cases when writing, respect what the peer has asked for 

1.3.x branch cut, version bump PR

Upmerge 1.2.4 into master

Add check that we don't schedule the same closure twice at once.

Use RESOURCE_EXHAUSTED for max message size limits.

In all cases when writing, respect what the peer has asked for (not what the peer has acknowledged we asked for)

Making sure that gpr_free is a no-op for NULL input.

Fix typo in Kokoro scripts

Ubsan fixes

Fix 1MB perf scenarios

remove src/csharp/global.json

Add individual sanitizer suites to Kokoro

Add helper function to supply and parse error_details from Status.

Revert "Implement lazy deframe"

Bump version to 1.2.4

Update VM creation scripts to update Linux kernel

True Binary Encoding

Manual upmerge from v1.2.x

Implement lazy deframe