content: add La Cucaracha horn sound

Add the classic La Cucaracha musical horn melody to the Volts catalog.
CC0-licensed audio with meta.yaml and frontmatter page.

Parent task: NAT-69

Co-Authored-By: Paperclip <noreply@paperclip.ing>

Author: tallnato

content/hornsounds/la-cucaracha.md

@@ -0,0 +1,11 @@
+---
+title: La Cucaracha
+author: Volts Community
+description: The classic La Cucaracha musical horn melody, a beloved car horn tune.
+tags:
+  - funny
+  - music
+  - retro
+---
+
+The iconic La Cucaracha melody, one of the most recognizable musical car horns ever made. This classic tune has been a favorite among drivers for decades.

content/hornsounds/la-cucaracha/la-cucaracha.wav

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+title: La Cucaracha
+author: Volts Community
+description: The classic La Cucaracha musical horn melody, a beloved car horn tune.
+license: CC0
+tags:
+  - funny
+  - music
+  - retro