Enable text_embedding function in non-snapshot builds.

Author: afoucret

x-pack/plugin/esql/src/main/java/org/elasticsearch/xpack/esql/action/EsqlCapabilities.java

@@ -1243,7 +1243,7 @@ public enum Cap {
         /**
          * Support for the {@code TEXT_EMBEDDING} function for generating dense vector embeddings.
          */
-        TEXT_EMBEDDING_FUNCTION(Build.current().isSnapshot()),
+        TEXT_EMBEDDING_FUNCTION,
 
         /**
          * Support for the LIKE operator with a list of wildcards.

x-pack/plugin/esql/src/main/java/org/elasticsearch/xpack/esql/expression/function/EsqlFunctionRegistry.java

@@ -526,7 +526,9 @@ private static FunctionDefinition[][] functions() {
                 def(AbsentOverTime.class, uni(AbsentOverTime::new), "absent_over_time"),
                 def(AvgOverTime.class, uni(AvgOverTime::new), "avg_over_time"),
                 def(LastOverTime.class, uni(LastOverTime::new), "last_over_time"),
-                def(FirstOverTime.class, uni(FirstOverTime::new), "first_over_time") } };
+                def(FirstOverTime.class, uni(FirstOverTime::new), "first_over_time"),
+                // dense vector function
+                def(TextEmbedding.class, bi(TextEmbedding::new), "text_embedding")}};
 
     }
 
@@ -545,8 +547,7 @@ private static FunctionDefinition[][] snapshotFunctions() {
                 def(L1Norm.class, L1Norm::new, "v_l1_norm"),
                 def(L2Norm.class, L2Norm::new, "v_l2_norm"),
                 def(Magnitude.class, Magnitude::new, "v_magnitude"),
-                def(Hamming.class, Hamming::new, "v_hamming"),
-                def(TextEmbedding.class, bi(TextEmbedding::new), "text_embedding") } };
+                def(Hamming.class, Hamming::new, "v_hamming")}};
     }
 
     public EsqlFunctionRegistry snapshotRegistry() {