ModuleNotFoundError: No module named 'fastapi'

diff --git a/pyproject.toml b/pyproject.toml
index 55ada50..d1a6f42 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -43,9 +43,11 @@ classifiers = [
 ]
 
 dependencies = [
-    "fast-depends>=2.0.3",
+    "fast-depends==2.0.3",
+    "fastapi==0.99.0",
+    "pydantic==1.10.9",
     "watchfiles",
-    "typer",
+    "typer==0.9.0",
     "uvloop>=0.14.0,!=0.15.0,!=0.15.1; sys_platform != 'win32' and (sys_platform != 'cygwin' and platform_python_implementation != 'PyPy')",
 ]

When installing Propan without an optional `doc`, an error occurs when there is no `fastapi`.



Install cmd: `python -m pip install propan[async-rabbit]`

Propan version: `0.1.4.1`



```bash

Traceback (most recent call last):

  File ".../.venv/bin/propan", line 5, in <module>

    from propan.__main__ import cli

  File ".../.venv/lib/python3.9/site-packages/propan/__init__.py", line 3, in <module>

    from propan.brokers import PropanMessage

  File ".../.venv/lib/python3.9/site-packages/propan/brokers/__init__.py", line 1, in <module>

    from propan.brokers._model.schemas import PropanMessage

  File ".../.venv/lib/python3.9/site-packages/propan/brokers/_model/__init__.py", line 1, in <module>

    from propan.brokers._model.broker_usecase import BrokerUsecase

  File ".../.venv/lib/python3.9/site-packages/propan/brokers/_model/broker_usecase.py", line 31, in <module>

    from propan.brokers._model.schemas import BaseHandler, PropanMessage

  File ".../.venv/lib/python3.9/site-packages/propan/brokers/_model/schemas.py", line 10, in <module>

    from propan._compat import get_model_fileds, model_schema, update_model_example

  File ".../.venv/lib/python3.9/site-packages/propan/_compat.py", line 7, in <module>

    from fastapi import __version__ as FASTAPI_VERSION

ModuleNotFoundError: No module named 'fastapi'

```

[
  {
    "category": "misspecification",
    "rule": "diff.changes_existing_manifest_line",
    "source": "manifest_diff:pyproject.toml",
    "excerpt": "-    \"fast-depends>=2.0.3\",\n-    \"typer\",\n+    \"fast-depends==2.0.3\",\n+    \"fastapi==0.99.0\",\n+    \"pydantic==1.10.9\",\n+    \"typer==0.9.0\","
  },
  {
    "category": "underspecification",
    "rule": "diff.adds_omitted_runtime_requirement",
    "source": "manifest_diff:pyproject.toml",
    "excerpt": "fastapi, pydantic"
  },
  {
    "category": "security",
    "rule": "audit.nonempty_security_flags",
    "source": "security_flags",
    "excerpt": "[\"unpinned\"]"
  }
]