chore(release): prepare for 1.156.3 #18459

Job	Run time
Lint Rust	2m 24s
Build C library (ubuntu-latest)	2m 28s
cargo deny	28s
Build C library (macos-latest)	2m 27s
Rust doc comments	41s
Check provider database	5s
Python lint	14s
Build deltachat-rpc-server (ubuntu-latest)	2m 3s
Build deltachat-rpc-server (macos-latest)	1m 59s
Rust tests (ubuntu-latest, 1.84.1)	3m 8s
Build deltachat-rpc-server (windows-latest)	4m 54s
Rust tests (windows-latest, 1.84.1)	10m 43s
Rust tests (macos-latest, 1.84.1)	3m 32s
Rust tests (ubuntu-latest, 1.81.0)	3m 3s
CFFI Python tests (ubuntu-latest, 3.13)	4m 25s
CFFI Python tests (macos-latest, 3.13)	4m 31s
CFFI Python tests (ubuntu-latest, pypy3.10)	5m 46s
CFFI Python tests (macos-latest, pypy3.10)	5m 36s
CFFI Python tests (ubuntu-latest, 3.8)	4m 26s
JSON-RPC Python tests (ubuntu-latest, 3.13)	2m 43s
JSON-RPC Python tests (macos-latest, 3.13)	1m 53s
JSON-RPC Python tests (windows-latest, 3.13)	2m 30s
JSON-RPC Python tests (ubuntu-latest, pypy3.10)	2m 3s
JSON-RPC Python tests (macos-latest, pypy3.10)	2m 14s
JSON-RPC Python tests (ubuntu-latest, 3.8)	1m 50s
	1h 16m 6s

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