update pip install to latest release

Author: julian-risch

tutorials/44_Creating_Custom_SuperComponents.ipynb

@@ -55,8 +55,8 @@
    "source": [
     "%%bash\n",
     "\n",
-    "pip install git+https://github.com/deepset-ai/haystack.git@main  # pip install haystack-ai after the 2.13 release\n",
-    "pip install \"sentence-transformers>=3.0.0\"  datasets transformers[torch,sentencepiece]"
+    "pip install haystack-ai\n",
+    "pip install \"sentence-transformers>=3.0.0\" datasets transformers[torch,sentencepiece]"
    ]
   },
   {
@@ -3591,4 +3591,4 @@
  },
  "nbformat": 4,
  "nbformat_minor": 0
-}
+}