fix: ignore garbage at the end of the keys #17417

Job	Run time
Lint Rust	2m 33s
Check if node constants are up to date	8s
Build C library (ubuntu-latest)	2m 34s
Build C library (macos-latest)	2m 35s
cargo deny	34s
Rust doc comments	33s
Check provider database	4s
Python lint	13s
Build deltachat-rpc-server (ubuntu-latest)	2m 15s
Rust tests (ubuntu-latest, 1.83.0)	3m 14s
Rust tests (windows-latest, 1.83.0)	8m 56s
Build deltachat-rpc-server (macos-latest)	2m 29s
Rust tests (macos-latest, 1.83.0)	4m 8s
Build deltachat-rpc-server (windows-latest)	5m 29s
Rust tests (ubuntu-latest, 1.81.0)	3m 12s
CFFI Python tests (ubuntu-latest, 3.13)	5m 2s
CFFI Python tests (macos-latest, 3.13)	4m 45s
CFFI Python tests (ubuntu-latest, pypy3.10)	7m 36s
CFFI Python tests (macos-latest, pypy3.10)	6m 20s
CFFI Python tests (ubuntu-latest, 3.7)	4m 51s
JSON-RPC Python tests (ubuntu-latest, 3.13)	1m 41s
JSON-RPC Python tests (macos-latest, 3.13)	2m 3s
JSON-RPC Python tests (windows-latest, 3.13)	2m 58s
JSON-RPC Python tests (ubuntu-latest, pypy3.10)	1m 50s
JSON-RPC Python tests (macos-latest, pypy3.10)	1m 47s
JSON-RPC Python tests (ubuntu-latest, 3.7)	1m 49s
	1h 19m 39s

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