build: bump the all-backend-deps group in /src/backend with 6 updates

Bumps the all-backend-deps group in /src/backend with 6 updates:

| Package | From | To |
| --- | --- | --- |
| [openai](https://github.com/openai/openai-python) | `2.8.1` | `2.14.0` |
| [opentelemetry-sdk](https://github.com/open-telemetry/opentelemetry-python) | `1.38.0` | `1.39.1` |
| [opentelemetry-api](https://github.com/open-telemetry/opentelemetry-python) | `1.38.0` | `1.39.1` |
| [opentelemetry-semantic-conventions](https://github.com/open-telemetry/opentelemetry-python) | `0.59b0` | `0.60b1` |
| [opentelemetry-instrumentation](https://github.com/open-telemetry/opentelemetry-python-contrib) | `0.59b0` | `0.60b1` |
| [azure-monitor-opentelemetry](https://github.com/Azure/azure-sdk-for-python) | `1.8.2` | `1.8.3` |


Updates `openai` from 2.8.1 to 2.14.0
- [Release notes](https://github.com/openai/openai-python/releases)
- [Changelog](https://github.com/openai/openai-python/blob/main/CHANGELOG.md)
- [Commits](openai/openai-python@v2.8.1...v2.14.0)

Updates `opentelemetry-sdk` from 1.38.0 to 1.39.1
- [Release notes](https://github.com/open-telemetry/opentelemetry-python/releases)
- [Changelog](https://github.com/open-telemetry/opentelemetry-python/blob/v1.39.1/CHANGELOG.md)
- [Commits](open-telemetry/opentelemetry-python@v1.38.0...v1.39.1)

Updates `opentelemetry-api` from 1.38.0 to 1.39.1
- [Release notes](https://github.com/open-telemetry/opentelemetry-python/releases)
- [Changelog](https://github.com/open-telemetry/opentelemetry-python/blob/v1.39.1/CHANGELOG.md)
- [Commits](open-telemetry/opentelemetry-python@v1.38.0...v1.39.1)

Updates `opentelemetry-semantic-conventions` from 0.59b0 to 0.60b1
- [Release notes](https://github.com/open-telemetry/opentelemetry-python/releases)
- [Changelog](https://github.com/open-telemetry/opentelemetry-python/blob/main/CHANGELOG.md)
- [Commits](https://github.com/open-telemetry/opentelemetry-python/commits)

Updates `opentelemetry-instrumentation` from 0.59b0 to 0.60b1
- [Release notes](https://github.com/open-telemetry/opentelemetry-python-contrib/releases)
- [Changelog](https://github.com/open-telemetry/opentelemetry-python-contrib/blob/main/CHANGELOG.md)
- [Commits](https://github.com/open-telemetry/opentelemetry-python-contrib/commits)

Updates `azure-monitor-opentelemetry` from 1.8.2 to 1.8.3
- [Release notes](https://github.com/Azure/azure-sdk-for-python/releases)
- [Commits](Azure/azure-sdk-for-python@azure-monitor-opentelemetry_1.8.2...azure-monitor-opentelemetry_1.8.3)

---
updated-dependencies:
- dependency-name: openai
  dependency-version: 2.14.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: all-backend-deps
- dependency-name: opentelemetry-sdk
  dependency-version: 1.39.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: all-backend-deps
- dependency-name: opentelemetry-api
  dependency-version: 1.39.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: all-backend-deps
- dependency-name: opentelemetry-semantic-conventions
  dependency-version: 0.60b1
  dependency-type: direct:production
  dependency-group: all-backend-deps
- dependency-name: opentelemetry-instrumentation
  dependency-version: 0.60b1
  dependency-type: direct:production
  dependency-group: all-backend-deps
- dependency-name: azure-monitor-opentelemetry
  dependency-version: 1.8.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: all-backend-deps
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

src/backend/requirements.txt

@@ -36,7 +36,7 @@ typing-extensions
 python-jose[cryptography]
 passlib[bcrypt]
 semantic-kernel[azure]==1.39.0
-openai==2.8.1
+openai==2.14.0
 sqlparse
 sqlglot
 unittest2
@@ -46,9 +46,9 @@ aiortc
 opentelemetry-exporter-otlp-proto-grpc
 opentelemetry-exporter-otlp-proto-http
 azure-monitor-events-extension
-opentelemetry-sdk==1.38.0
-opentelemetry-api==1.38.0
-opentelemetry-semantic-conventions==0.59b0
-opentelemetry-instrumentation==0.59b0
-azure-monitor-opentelemetry==1.8.2
+opentelemetry-sdk==1.39.1
+opentelemetry-api==1.39.1
+opentelemetry-semantic-conventions==0.60b1
+opentelemetry-instrumentation==0.60b1
+azure-monitor-opentelemetry==1.8.3
 azure-ai-projects==1.0.0