Improve build coverage for Linux and Darwin

[bzbarsky-apple]

Two changes here:

1. Pass target_os="all" to the existing Linux builds, so it will build
   the various "linux" versions of things like tv-app.

2. Stand up build coverage of the same sort on Darwin.

Problem

It turned out we had no CI building the "linux" versions of things like tv-app on Darwin, and possibly not on Linux either.

Change overview

Run the "build" task on Darwin as well, and change the "build" task to do target_is="all".

The latter required bumping up the build and test timeouts on the Linux tests. Basically, the opt gcc builds now take 20-25 mins and the debug gcc tests take 7-10 minutes. The sum of the build and test times for both seems to be in the ~23 minute range.

Testing

1. Verified that before the most recent fixes on tip (Fix minimal mdns test #7608, Fix tv-app build on darwin #7607) the Darwin CI being added here fails.
2. Verified that after those changes the build CI passes on both Darwin and Linux.

[todo]

Log Upload #2227

connectedhomeip/.github/workflows/build.yaml

Lines 144 to 151 in 25fdda8

	# TODO Log Upload https://github.com/project-chip/connectedhomeip/issues/2227
	# TODO https://github.com/project-chip/connectedhomeip/issues/1512
	# - name: Run Code Coverage
	# if: ${{ contains('main', env.BUILD_TYPE) }}
	# run: scripts/tools/codecoverage.sh
	# - name: Upload Code Coverage
	# if: ${{ contains('main', env.BUILD_TYPE) }}
	# run: bash <(curl -s https://codecov.io/bash)

---

This comment was generated by todo based on a TODO comment in 25fdda8 in #7625. cc @bzbarsky-apple.

[todo]

#1512

connectedhomeip/.github/workflows/build.yaml

Lines 145 to 151 in 25fdda8

	# TODO https://github.com/project-chip/connectedhomeip/issues/1512
	# - name: Run Code Coverage
	# if: ${{ contains('main', env.BUILD_TYPE) }}
	# run: scripts/tools/codecoverage.sh
	# - name: Upload Code Coverage
	# if: ${{ contains('main', env.BUILD_TYPE) }}
	# run: bash <(curl -s https://codecov.io/bash)

---

This comment was generated by todo based on a TODO comment in 25fdda8 in #7625. cc @bzbarsky-apple.

[mspang]

This is going to build with clang in the "gcc" build and gcc in the "clang" build, etc. Currently CI is building the configs separately while the "unified" configuration tries to build them together.

(Admittedly this does mean we get different coverage unless we work to keep them in sync)

Should we perhaps instead augment examples-linux-standalone.yaml instead ? (and also run that on Mac)

[bzbarsky-apple]

Should we perhaps instead augment examples-linux-standalone.yaml instead ?

Excellent, this is just the sort of info I needed. ;) Let me look into that. I suspect on Mac I'll still want to do the thing I am doing now, because that matches what people run in practice to get an "up to date" Mac build, but I was hoping there was a less-expensive way to do the Linux bits.

[bzbarsky-apple]

@mspang please take a look? I went through the things the "default" build builds and looks like tv-app was the only one missing from examples-linux-standalone.

[woody-apple]

@saurabhst @jelderton @Damian-Nordic @LuDuda ?