Updated example to pyproject.toml [skip ci]

Author: ankane

README.md

@@ -816,7 +816,7 @@ To run an example:
 
 ```sh
 cd examples/loading
-pip install -r requirements.txt
+pip install --group dev
 createdb pgvector_example
 python3 example.py
 ```

examples/citus/pyproject.toml

@@ -0,0 +1,11 @@
+[project]
+name = "example"
+version = "0.1.0"
+requires-python = ">= 3.9"
+
+[dependency-groups]
+dev = [
+    "numpy",
+    "pgvector",
+    "psycopg[binary]"
+]

examples/citus/requirements.txt

@@ -0,0 +1,11 @@
+[project]
+name = "example"
+version = "0.1.0"
+requires-python = ">= 3.9"
+
+[dependency-groups]
+dev = [
+    "cohere",
+    "pgvector",
+    "psycopg[binary]"
+]

examples/cohere/pyproject.toml

@@ -0,0 +1,12 @@
+[project]
+name = "example"
+version = "0.1.0"
+requires-python = ">= 3.9"
+
+[dependency-groups]
+dev = [
+    "colbert-ai",
+    "pgvector",
+    "psycopg[binary]",
+    "transformers==4.49.0"
+]

examples/cohere/requirements.txt

@@ -0,0 +1,12 @@
+[project]
+name = "example"
+version = "0.1.0"
+requires-python = ">= 3.9"
+
+[dependency-groups]
+dev = [
+    "colpali-engine",
+    "datasets",
+    "pgvector",
+    "psycopg[binary]"
+]

examples/colbert/pyproject.toml

@@ -0,0 +1,13 @@
+[project]
+name = "example"
+version = "0.1.0"
+requires-python = ">= 3.9"
+
+[dependency-groups]
+dev = [
+    "gensim",
+    "numpy",
+    "pgvector",
+    "psycopg[binary]",
+    "scipy<1.13"
+]