Accept a String or charstring for database open #520

Job	Run time
Test Elixir 1.17, OTP 27, OS ubuntu-latest	38s
Test Elixir 1.17, OTP 27, OS ubuntu-latest	38s
Lint (ubuntu-latest, 1.17, 27)	1m 15s
Lint (ubuntu-latest, 1.17, 27)	1m 15s
Test Elixir 1.17, OTP 26, OS ubuntu-latest	40s
Test Elixir 1.17, OTP 26, OS ubuntu-latest	40s
Test Elixir 1.17, OTP 25, OS ubuntu-latest	33s
Test Elixir 1.17, OTP 25, OS ubuntu-latest	33s
Test Elixir 1.16, OTP 26, OS ubuntu-latest	34s
Test Elixir 1.16, OTP 26, OS ubuntu-latest	34s
Test Elixir 1.16, OTP 25, OS ubuntu-latest	39s
Test Elixir 1.16, OTP 25, OS ubuntu-latest	39s
Test Elixir 1.15, OTP 26, OS ubuntu-latest	34s
Test Elixir 1.15, OTP 26, OS ubuntu-latest	34s
Test Elixir 1.15, OTP 25, OS ubuntu-latest	34s
Test Elixir 1.15, OTP 25, OS ubuntu-latest	34s
Test Elixir 1.17, OTP 27, OS windows-2019	1m 43s
Test Elixir 1.17, OTP 27, OS windows-2019	1m 43s
Test Elixir 1.17, OTP 26, OS windows-2019	1m 51s
Test Elixir 1.17, OTP 26, OS windows-2019	1m 51s
Test Elixir 1.17, OTP 25, OS windows-2019	1m 39s
Test Elixir 1.17, OTP 25, OS windows-2019	1m 47s
Test Elixir 1.16, OTP 26, OS windows-2019	1m 54s
Test Elixir 1.16, OTP 26, OS windows-2019	1m 46s
Test Elixir 1.16, OTP 25, OS windows-2019	1m 46s
Test Elixir 1.16, OTP 25, OS windows-2019	1m 46s
Test Elixir 1.15, OTP 26, OS windows-2019	3m 16s
Test Elixir 1.15, OTP 26, OS windows-2019	3m 16s
Test Elixir 1.15, OTP 25, OS windows-2019	2m 51s
Test Elixir 1.15, OTP 25, OS windows-2019	1m 49s
	39m 52s

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