ci: .gitattributes - Ensure eol=lf for shell scripts (#3755)

* ci: `.gitattributes` - Ensure `eol=lf` for shell scripts

- These files should always use LF for line endings during a checkout.
- `Dockerfile` does not like building with HereDoc `RUN` scripts that expect LF.

.gitattributes

@@ -20,9 +20,8 @@
 
 ## BUILD:
 .dockerignore       text
-Dockerfile          text
+Dockerfile          text eol=lf
 Makefile
-VERSION
 
 ## EXAMPLE (RUNTIME):
 *.env               text
@@ -75,8 +74,8 @@ target/postsrsd/**  text
 #################################################
 
 ## BATS
-*.bash              text
-*.bats              text
+*.bash              text eol=lf
+*.bats              text eol=lf
 
 ## CONFIG (test/config/)
 ### OpenLDAP image

CHANGELOG.md

@@ -14,6 +14,11 @@ All notable changes to this project will be documented in this file. The format
 - **Rspamd** ([#3726](https://github.com/docker-mailserver/docker-mailserver/pull/3726)):
   - symbol scores for SPF, DKIM & DMARC were updated to more closely align with [RFC7489](https://www.rfc-editor.org/rfc/rfc7489#page-24); please note though that complete alignment is undesirable, because other symbols might be added as well, which changes the overall score calculation again, see [this issue](https://github.com/docker-mailserver/docker-mailserver/issues/3690#issuecomment-1866871996)
 
+### Fixes
+
+- **Internal:**
+  - `.gitattributes`: Always use LF line endings on checkout for files with shell script content ([#3755](https://github.com/docker-mailserver/docker-mailserver/pull/3755))
+
 ## [v13.2.0](https://github.com/docker-mailserver/docker-mailserver/releases/tag/v13.2.0)
 
 ### Security