build(deps): update fastapi requirement from >=0.139.2 to >=0.140.0 (#555)

Updates the requirements on [fastapi](https://github.com/fastapi/fastapi) to permit the latest version.
- [Release notes](https://github.com/fastapi/fastapi/releases)
- [Commits](fastapi/fastapi@0.139.2...0.140.0)

---
updated-dependencies:
- dependency-name: fastapi
  dependency-version: 0.140.0
  dependency-type: direct:production
...

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Author: dependabot[bot]

requirements.txt

@@ -6,7 +6,7 @@ boto3 >= 1.43.51
 click >= 8.4.2
 colorama >= 0.4.6, < 0.4.7
 cryptography >= 49.0.0
-fastapi[all] >= 0.139.2
+fastapi[all] >= 0.140.0
 paramiko >= 5.0.0
 prettytable >= 3.18.0
 psutil >= 7.2.2