community/railway: upgrade to 2.7.3

https://gitlab.com/schmiddi-on-mobile/railway/-/releases/2.7.3

community/railway/APKBUILD

 # Contributor: Usia Bechtle <usia@bechtlebox.de>
 # Maintainer: jane400 <alpine@j4ne.de>
 pkgname=railway
-pkgver=2.7.2
+pkgver=2.7.3
 pkgrel=0
 pkgdesc="Railway lets you look up travel information for many different railways"
 url="https://gitlab.com/schmiddi-on-mobile/railway"
@@ -44,5 +44,5 @@ package() {
 }
 
 sha512sums="
-fb7f6fc98166d013b5ae54ea537e589050f2d049b55859223bd6949374d930bf8e01a57e1ac67f62631285ca09b80c895ec1c47531f792227d919b764d2edc44  railway-2.7.2.tar.gz
+91e3269d1437b8f365c7f64267b2f0cfbdbf5a9bf12e2f8229d05592a26e0ca2e5a619721cc472e6875e9eee78d022fb96cf0b649b368ee296062fe4dd2097ca  railway-2.7.3.tar.gz
 "