Rename master -> main #302

Job	Run time
Lint	1m 23s
Test installation of all dependencies	4m 2s
Test dev setup on ubuntu-latest	1m 0s
Test dev setup on windows-latest	2m 52s
Test dev setup on macos-latest	1m 29s
Test (Python: 3.8, DB: mysql)	24m 59s
Test (Python: 3.8, DB: postgres)	23m 18s
Test (Python: 3.12, DB: mysql)	37m 33s
Test (Python: 3.12, DB: postgres)	33m 57s
Indicate completion to coveralls	19s
Build python wheel	0s
required-checks-pass	1s
	2h 10m 53s

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