Fix CI build

Failed because everything in gradle.properties is only available locally

.github/workflows/build.yml

@@ -23,4 +23,4 @@ jobs:
     - name: Grant execute permission for gradlew
       run: chmod +x gradlew
     - name: Build with Gradle
-      run: ./gradlew build
+      run: ./gradlew build -x signArchives

api/build.gradle

@@ -9,6 +9,8 @@ dependencies {
 
 ext {
     libraryVersion = System.getProperty("libraryVersion")
+    ossrhUsername = System.getProperty("ossrhUsername")
+    ossrhPassword = System.getProperty("ossrhPassword")
 }
 
 version = libraryVersion

client/build.gradle

@@ -11,6 +11,8 @@ dependencies {
 
 ext {
     libraryVersion = System.getProperty("libraryVersion")
+    ossrhUsername = System.getProperty("ossrhUsername")
+    ossrhPassword = System.getProperty("ossrhPassword")
 }
 
 version = libraryVersion