detect: add new_de_ctx release in case of errors in initialization

Detect engine tenant reloading function hasn't got engine release call
under error label, so it is possible memory leak in case of errors in
further new detect engine initialization.

Bug: #7303

src/detect-engine.c

@@ -3931,12 +3931,12 @@ static int DetectEngineMultiTenantReloadTenant(uint32_t tenant_id, const char *f
     new_de_ctx->tenant_path = SCStrdup(filename);
     if (new_de_ctx->tenant_path == NULL) {
         SCLogError("Failed to duplicate path");
-        goto error;
+        goto new_de_ctx_error;
     }
 
     if (SigLoadSignatures(new_de_ctx, NULL, false) < 0) {
         SCLogError("Loading signatures failed.");
-        goto error;
+        goto new_de_ctx_error;
     }
 
     DetectEngineAddToMaster(new_de_ctx);
@@ -3946,6 +3946,9 @@ static int DetectEngineMultiTenantReloadTenant(uint32_t tenant_id, const char *f
     DetectEngineDeReference(&old_de_ctx);
     return 0;
 
+new_de_ctx_error:
+    DetectEngineCtxFree(new_de_ctx);
+
 error:
     DetectEngineDeReference(&old_de_ctx);
     return -1;