remove imap_tools from dependencies #17068

Job	Run time
Build C library (ubuntu-latest)	2m 28s
Build C library (macos-latest)	2m 10s
cargo deny	31s
Rust doc comments	17s
Lint Rust	2m 27s
Check if node constants are up to date	4s
Check provider database	6s
Python lint	14s
Rust tests (ubuntu-latest, 1.82.0)	3m 5s
Rust tests (windows-latest, 1.82.0)	8m 45s
Build deltachat-rpc-server (ubuntu-latest)	2m 19s
Rust tests (macos-latest, 1.82.0)	2m 37s
Rust tests (ubuntu-latest, 1.77.0)	3m 23s
Build deltachat-rpc-server (macos-latest)	2m 7s
Build deltachat-rpc-server (windows-latest)	6m 11s
CFFI Python tests (ubuntu-latest, 3.13)	4m 49s
CFFI Python tests (macos-latest, 3.13)	4m 37s
CFFI Python tests (ubuntu-latest, pypy3.10)	5m 40s
CFFI Python tests (macos-latest, pypy3.10)	5m 50s
CFFI Python tests (ubuntu-latest, 3.7)	4m 38s
JSON-RPC Python tests (ubuntu-latest, 3.13)	1m 40s
JSON-RPC Python tests (macos-latest, 3.13)	1m 34s
JSON-RPC Python tests (windows-latest, 3.13)	3m 21s
JSON-RPC Python tests (ubuntu-latest, pypy3.10)	2m 42s
JSON-RPC Python tests (macos-latest, pypy3.10)	1m 59s
JSON-RPC Python tests (ubuntu-latest, 3.7)	1m 47s
	1h 15m 21s

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