[PR #8699/11f0e7f backport][3.11] Reduce code indent in ResponseHandler.data_received #8797

Job	Run time
Generate llhttp sources	10s
Linter	1m 4s
Benchmark	4m 42s
Test (3.9, ubuntu, false)	3m 48s
Test (3.9, macos, false)	3m 44s
Test (3.9, windows, false)	4m 46s
Test (3.9, Y, ubuntu, false)	3m 0s
Test (3.10, ubuntu, false)	3m 43s
Test (3.10, macos, false)	2m 45s
Test (3.10, windows, false)	4m 32s
Test (3.10, Y, ubuntu, false)	3m 17s
Test (3.11, ubuntu, false)	3m 22s
Test (3.11, macos, false)	3m 23s
Test (3.11, windows, false)	4m 43s
Test (3.11, Y, ubuntu, false)	3m 18s
Test (3.12, ubuntu, false)	4m 1s
Test (3.12, macos, false)	2m 38s
Test (3.12, windows, false)	5m 6s
Test (3.12, Y, ubuntu, false)	3m 29s
Test (3.13, ubuntu, false)	3m 50s
Test (3.13, macos, false)	2m 53s
Test (3.13, windows, false)	5m 12s
Test (3.13, Y, ubuntu, false)	3m 51s
Test (pypy-3.9, Y, ubuntu, false)	7m 17s
check	3s
Pre-Deploy	0s
Build wheels on ${{ matrix.os }} ${{ matrix.qemu }}	0s
Tarball	0s
Deploy	0s
	1h 28m 37s

Provide feedback