(fix) set root project version for JReleaser snapshot detection

JReleaser reads the version from the root Gradle project. Without it,
the version defaults to 'unspecified', causing JReleaser to treat the
build as a release and disable the nexus2 snapshot deployer.

Also restores non-deprecated jreleaser.yml keys (the deprecated keys
were not the root cause) and keeps snapshotSupported: true.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: alexey-pelykh

build.gradle.kts

@@ -6,6 +6,8 @@ plugins {
     alias(libs.plugins.jreleaser)
 }
 
+version = findProperty("uvccamera.version") as String? ?: "0.0.0-SNAPSHOT"
+
 jreleaser {
     configFile = file("jreleaser.yml")
 }

jreleaser.yml

@@ -7,9 +7,10 @@ project:
   license: Apache-2.0
   links:
     homepage: https://uvccamera.org
-  java:
-    groupId: org.uvccamera
-    version: 17
+  languages:
+    java:
+      groupId: org.uvccamera
+      version: 17
   versionPattern: CUSTOM
 
 release:
@@ -18,7 +19,8 @@ release:
 
 signing:
   active: ALWAYS
-  armored: true
+  pgp:
+    armored: true
 
 deploy:
   maven: