Fix HTTP cache #17403

Job	Run time
Rust doc comments	14s
cargo deny	32s
Build C library (ubuntu-latest)	7m 49s
Build C library (macos-latest)	6m 36s
Lint Rust	7m 43s
Check if node constants are up to date	5s
Check provider database	3s
Python lint	10s
Build deltachat-rpc-server (ubuntu-latest)	7m 30s
Rust tests (ubuntu-latest, 1.83.0)	3m 17s
Build deltachat-rpc-server (macos-latest)	2m 49s
Build deltachat-rpc-server (windows-latest)	7m 10s
Rust tests (windows-latest, 1.83.0)	8m 13s
Rust tests (macos-latest, 1.83.0)	7m 54s
Rust tests (ubuntu-latest, 1.77.0)	9m 39s
CFFI Python tests (ubuntu-latest, 3.13)	6m 56s
CFFI Python tests (macos-latest, 3.13)	5m 2s
CFFI Python tests (ubuntu-latest, pypy3.10)	7m 29s
CFFI Python tests (macos-latest, pypy3.10)	6m 24s
CFFI Python tests (ubuntu-latest, 3.7)	4m 45s
JSON-RPC Python tests (ubuntu-latest, 3.13)	1m 48s
JSON-RPC Python tests (macos-latest, 3.13)	1m 54s
JSON-RPC Python tests (windows-latest, 3.13)	3m 14s
JSON-RPC Python tests (ubuntu-latest, pypy3.10)	2m 25s
JSON-RPC Python tests (macos-latest, pypy3.10)	2m 42s
JSON-RPC Python tests (ubuntu-latest, 3.7)	1m 43s
	1h 54m 6s

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