CI: change nightly.yml name tag to "Nightly CI" #112

Job	Run time
build (ubuntu-22.04, Debug, static, 5.15)	1m 16s
build (ubuntu-22.04, Debug, static, 6.6.0)	2m 6s
build (ubuntu-22.04, Debug, dynamic, 5.15)	1m 6s
build (ubuntu-22.04, Debug, dynamic, 6.6.0)	1m 47s
build (ubuntu-22.04, Release, static, 5.15)	53s
build (ubuntu-22.04, Release, static, 6.6.0)	1m 21s
build (ubuntu-22.04, Release, dynamic, 5.15)	56s
build (ubuntu-22.04, Release, dynamic, 6.6.0)	1m 1s
build (windows-2022, Debug, static, 5.15)	3m 3s
build (windows-2022, Debug, static, 6.6.0)	3m 24s
build (windows-2022, Debug, dynamic, 5.15)	2m 26s
build (windows-2022, Debug, dynamic, 6.6.0)	2m 54s
build (windows-2022, Release, static, 5.15)	1m 4s
build (windows-2022, Release, static, 6.6.0)	2m 31s
build (windows-2022, Release, dynamic, 5.15)	1m 40s
build (windows-2022, Release, dynamic, 6.6.0)	1m 51s
build (macos-13, Debug, static, 5.15)	1m 45s
build (macos-13, Debug, static, 6.6.0)	3m 7s
build (macos-13, Debug, dynamic, 5.15)	1m 47s
build (macos-13, Debug, dynamic, 6.6.0)	2m 21s
build (macos-13, Release, static, 5.15)	1m 13s
build (macos-13, Release, static, 6.6.0)	3m 3s
build (macos-13, Release, dynamic, 5.15)	1m 38s
build (macos-13, Release, dynamic, 6.6.0)	2m 21s
build (ubuntu-22.04, Release, dynamic, 6.6.0, llvm, shiboken6-generator==6.6.0 pyside6==6.6.0)	2m 5s
	48m 39s

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