Bump version; make relevant API changes

Author: michaeljmarshall

build.xml

@@ -741,7 +741,7 @@
           <dependency groupId="org.apache.lucene" artifactId="lucene-core" version="9.8.0" />
           <dependency groupId="org.apache.lucene" artifactId="lucene-analysis-common" version="9.8.0" />
           <dependency groupId="org.apache.lucene" artifactId="lucene-backward-codecs" version="9.8.0" />
-          <dependency groupId="io.github.jbellis" artifactId="jvector" version="4.0.0-rc.5-SNAPSHOT" />
+          <dependency groupId="io.github.jbellis" artifactId="jvector" version="4.0.0-rc.5" />
           <dependency groupId="com.bpodgursky" artifactId="jbool_expressions" version="1.14" scope="test"/>
 
           <dependency groupId="com.carrotsearch.randomizedtesting" artifactId="randomizedtesting-runner" version="2.1.2" scope="test">

src/java/org/apache/cassandra/index/sai/disk/vector/CassandraDiskAnn.java

@@ -124,7 +124,7 @@ public CassandraDiskAnn(SSTableContext sstableContext, SegmentMetadata.Component
                 // don't load full PQVectors, all we need is the metadata from the PQ at the start
                 pq = ProductQuantization.load(reader);
                 compression = new VectorCompression(VectorCompression.CompressionType.PRODUCT_QUANTIZATION,
-                                                    rawGraph.getDimension() * Float.BYTES,
+                                                    graph.getDimension() * Float.BYTES,
                                                     pq.compressedVectorSize());
             }
             else