Bump codecov/codecov-action from 5 to 6 (#230) #1202

Job	Run time
Documentation	8m 43s
Julia 1 - ubuntu-latest - x64 - with code coverage	8m 40s
Julia 1 - macOS-latest - aarch64 - push	16m 53s
Julia lts - ubuntu-latest - x64 - with code coverage	9m 18s
Julia 1 - windows-latest - x64 - push	25m 24s
Julia 1 - ubuntu-latest - x64 - push	19m 33s
Julia lts - ubuntu-latest - x64 - push	13m 17s
	1h 41m 48s

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