build: make jspecify a required dependency

Author: ObserverOfTime

pom.xml

@@ -57,7 +57,6 @@
       <groupId>org.jspecify</groupId>
       <artifactId>jspecify</artifactId>
       <version>0.3.0</version>
-      <scope>provided</scope>
     </dependency>
     <dependency>
       <groupId>org.junit.jupiter</groupId>