Bump to TF2.15 #3456

Job	Run time
Linux	18m 34s
Lint	3m 40s
Build Number	0s
Lint for Docs	12s
Bazel Linux	5s
macOS	35m 30s
Bazel macOS arm64	1s
Bazel macOS	48m 9s
Bazel Windows	10m 54s
Wheel ${{ matrix.python }} Linux	0s
Nightly ${{ matrix.python }} Linux	0s
Test ${{ matrix.python }} Linux	0s
Wheel ${{ matrix.python }} Windows	0s
Nightly ${{ matrix.python }} Windows	0s
Test ${{ matrix.python }} Windows	0s
Wheel 3.9 macOS	33s
Wheel 3.10 macOS	35s
Wheel 3.11 macOS	37s
Test 3.9 macOS	1h 29m 26s
Release	0s
Nightly ${{ matrix.python }} macOS	0s
Release Candidate	0s
Nightly	0s
Docker Nightly	0s
Docker Release	0s
Wheel ${{ matrix.python }} macOS arm64	0s
Release (MacOS arm64)	0s
Release Candidate (MacOS arm64)	0s
	3h 28m 16s

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