Drop python 3.9 support, bump dependencies #49

Job	Run time
postgres (3.10, django32, postgres:9.5)	45s
sqlite (ubuntu-latest, django32, 3.10)	25s
postgres (3.10, django32, postgres:latest)	47s
sqlite (ubuntu-latest, django32, 3.11)	21s
mysql (3.10, django32, mysql:5.7)	45s
postgres (3.10, django42, postgres:9.5)	46s
mysql (3.10, django32, mysql:latest)	46s
sqlite (ubuntu-latest, django32, 3.12)	25s
postgres (3.10, django42, postgres:latest)	45s
sqlite (ubuntu-latest, django42, 3.10)	26s
mysql (3.10, django42, mysql:5.7)	47s
postgres (3.11, django32, postgres:9.5)	44s
sqlite (ubuntu-latest, django42, 3.11)	24s
mysql (3.10, django42, mysql:latest)	54s
postgres (3.11, django32, postgres:latest)	39s
mysql (3.11, django32, mysql:5.7)	43s
sqlite (ubuntu-latest, django42, 3.12)	22s
postgres (3.11, django42, postgres:9.5)	46s
mysql (3.11, django32, mysql:latest)	47s
postgres (3.11, django42, postgres:latest)	43s
mysql (3.11, django42, mysql:5.7)	47s
sqlite (macos-latest, django32, 3.10)	19s
postgres (3.12, django32, postgres:9.5)	51s
postgres (3.12, django32, postgres:latest)	46s
sqlite (macos-latest, django32, 3.11)	20s
mysql (3.11, django42, mysql:latest)	45s
sqlite (macos-latest, django32, 3.12)	18s
postgres (3.12, django42, postgres:9.5)	42s
mysql (3.12, django32, mysql:5.7)	50s
sqlite (macos-latest, django42, 3.10)	24s
mysql (3.12, django32, mysql:latest)	50s
postgres (3.12, django42, postgres:latest)	48s
mysql (3.12, django42, mysql:5.7)	51s
sqlite (macos-latest, django42, 3.11)	19s
mysql (3.12, django42, mysql:latest)	48s
sqlite (macos-latest, django42, 3.12)	19s
	22m 57s

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