fix: any handler sets a default application/json #2378

Job	Run time
Build aarch64 (Cabal, GHC ${{ matrix.ghc }})	0s
Build MacOS (Nix)	17m 47s
Build Linux (Cabal, GHC 9.0.2)	4m 6s
Build Linux (Cabal, GHC 9.2.4)	4m 2s
Build Linux (Stack)	2m 20s
Get FreeBSD build from CirrusCI	6m 17s
Build MacOS (Stack)	5m 5s
Prepopulate Nix cache for Linux runners	11m 26s
Build Windows (Stack)	4m 27s
Test (Nix)	5m 16s
Lint & check code style	1m 28s
Test memory (Nix)	3m 46s
Build Linux static (Nix)	5m 9s
Test PG 9.6 (Nix)	4m 19s
Test PG 10 (Nix)	4m 7s
Test PG 11 (Nix)	3m 46s
Test PG 12 (Nix)	3m 49s
Test PG 13 (Nix)	3m 52s
Test PG 14 (Nix)	4m 10s
Test PG 15 (Nix)	4m 9s
Test PG 16 (Nix)	3m 54s
Prepare release	0s
Release on GitHub	0s
Release on Docker Hub	0s
Release Arm Builds on Docker Hub	0s
Remove copied files from server	0s
	1h 43m 15s

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