fix #272 (#290)

@missytake and me both tested the deployment manually, so I'll merge

CHANGELOG.md

@@ -2,6 +2,9 @@
 
 ## untagged
 
+- fix writing of multiple obs repositories in `/etc/apt/sources.list`
+  ([#272](https://github.com/deltachat/chatmail/issues/272))
+
 - metadata: add support for `/shared/vendor/deltachat/irohrelay`
   ([#284](https://github.com/deltachat/chatmail/pull/284))
 

cmdeploy/src/cmdeploy/__init__.py

@@ -498,6 +498,7 @@ def deploy_chatmail(config_path: Path) -> None:
         name="Add DeltaChat OBS home repository to sources.list",
         path="/etc/apt/sources.list",
         line="deb [signed-by=/etc/apt/keyrings/obs-home-deltachat.gpg] https://download.opensuse.org/repositories/home:/deltachat/Debian_12/ ./",
+        escape_regex_characters=True,
         ensure_newline=True,
     )