fix: ignore garbage at the end of the keys #17409

Job	Run time
Build C library (ubuntu-latest)	2m 35s
cargo deny	34s
Build C library (macos-latest)	2m 49s
Rust doc comments	34s
Lint Rust	2m 52s
Check if node constants are up to date	3s
Check provider database	7s
Build deltachat-rpc-server (ubuntu-latest)	2m 3s
Python lint	10s
Rust tests (ubuntu-latest, 1.83.0)	3m 10s
Build deltachat-rpc-server (macos-latest)	1m 54s
Rust tests (windows-latest, 1.83.0)	9m 2s
Build deltachat-rpc-server (windows-latest)	7m 16s
Rust tests (macos-latest, 1.83.0)	2m 51s
Rust tests (ubuntu-latest, 1.81.0)	3m 28s
CFFI Python tests (ubuntu-latest, 3.13)	4m 51s
CFFI Python tests (macos-latest, 3.13)	5m 1s
CFFI Python tests (ubuntu-latest, pypy3.10)	6m 12s
CFFI Python tests (macos-latest, pypy3.10)	5m 33s
CFFI Python tests (ubuntu-latest, 3.7)	4m 57s
JSON-RPC Python tests (ubuntu-latest, 3.13)	1m 36s
JSON-RPC Python tests (macos-latest, 3.13)	1m 52s
JSON-RPC Python tests (windows-latest, 3.13)	3m 10s
JSON-RPC Python tests (ubuntu-latest, pypy3.10)	2m 9s
JSON-RPC Python tests (macos-latest, pypy3.10)	2m 1s
JSON-RPC Python tests (ubuntu-latest, 3.7)	1m 45s
	1h 18m 35s

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