chore: adjust types for text2VecAzureOpenAI to allow no object to be passed at all

Since the only indicator for the azureOpenAI config is now the isAzure: true flag, which is set in the vectorizer setup directly, no config object is necessary for it.

Author: flipace

src/collections/configure/types/vectorizer.ts

@@ -196,7 +196,7 @@ export type VectorizerConfigCreateType<V> = V extends 'img2vec-neural'
   : V extends 'text2vec-openai'
   ? Text2VecOpenAIConfigCreate | undefined
   : V extends 'text2vec-azure-openai'
-  ? Text2VecAzureOpenAIConfigCreate
+  ? Text2VecAzureOpenAIConfigCreate | undefined
   : V extends 'text2vec-palm'
   ? Text2VecPalmConfigCreate | undefined
   : V extends 'text2vec-transformers'

src/collections/configure/unit.test.ts

@@ -604,7 +604,7 @@ describe('Unit testing of the vectorizer factory class', () => {
   });
 
   it('should create the correct Text2VecAzureOpenAIConfig type with just isAzure: true', () => {
-    const config = configure.vectorizer.text2VecAzureOpenAI({});
+    const config = configure.vectorizer.text2VecAzureOpenAI();
     expect(config).toEqual<VectorConfigCreate<never, undefined, 'hnsw', 'text2vec-azure-openai'>>({
       name: undefined,
       vectorIndex: {

src/collections/configure/vectorizer.ts

@@ -245,9 +245,9 @@ export const vectorizer = {
    * @returns {VectorConfigCreate<PrimitiveKeys<T>, N, I, 'text2vec-azure-openai'>} The configuration object.
    */
   text2VecAzureOpenAI: <T, N extends string | undefined = undefined, I extends VectorIndexType = 'hnsw'>(
-    opts: ConfigureTextVectorizerOptions<T, N, I, 'text2vec-azure-openai'>
+    opts?: ConfigureTextVectorizerOptions<T, N, I, 'text2vec-azure-openai'>
   ): VectorConfigCreate<PrimitiveKeys<T>, N, I, 'text2vec-azure-openai'> => {
-    const { name, sourceProperties, vectorIndexConfig, ...config } = opts;
+    const { name, sourceProperties, vectorIndexConfig, ...config } = opts || {};
     return makeVectorizer(name, {
       sourceProperties,
       vectorIndexConfig,