Update PKGBUILD

Fixed the missing variable to replace the PKG version.

Author: airvzxf

.github/actions/aur-deployment/PKGBUILD

@@ -3,7 +3,7 @@ ENV_PACKAGE_INFORMATION
 # PKGBUILD variables.
 pkgname=ENV_PACKAGE_NAME
 pkgver=AUTO_PACKAGE_VERSION
-pkgrel=1
+pkgrel=ENV_PACKAGE_RELEASE
 pkgdesc='ENV_PACKAGE_DESCRIPTION'
 arch=(ENV_PACKAGE_ARCHITECTURES)
 url='AUTO_GITHUB_URL'