fix: start ephemeral timer when chat is archived #17496

Job	Run time
Check if node constants are up to date	5s
Build C library (ubuntu-latest)	2m 32s
cargo deny	29s
Build C library (macos-latest)	2m 19s
Lint Rust	1m 19s
Check provider database	4s
Rust doc comments	26s
Build deltachat-rpc-server (ubuntu-latest)	2m 10s
Rust tests (ubuntu-latest, 1.83.0)	59s
Build deltachat-rpc-server (macos-latest)	2m 0s
Rust tests (windows-latest, 1.83.0)	1m 57s
Python lint	10s
Build deltachat-rpc-server (windows-latest)	7m 19s
Rust tests (macos-latest, 1.83.0)	1s
Rust tests (ubuntu-latest, 1.77.0)	1m 33s
CFFI Python tests (ubuntu-latest, 3.13)	5m 28s
CFFI Python tests (macos-latest, 3.13)	4m 46s
CFFI Python tests (ubuntu-latest, pypy3.10)	7m 31s
CFFI Python tests (macos-latest, pypy3.10)	5m 30s
CFFI Python tests (ubuntu-latest, 3.7)	4m 44s
JSON-RPC Python tests (ubuntu-latest, 3.13)	1m 46s
JSON-RPC Python tests (macos-latest, 3.13)	1m 59s
JSON-RPC Python tests (windows-latest, 3.13)	2m 55s
JSON-RPC Python tests (ubuntu-latest, pypy3.10)	2m 5s
JSON-RPC Python tests (macos-latest, pypy3.10)	2m 1s
JSON-RPC Python tests (ubuntu-latest, 3.7)	1m 33s
	1h 3m 41s

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