fix(deps): Update dependency grpcio to v1.71.0 (#156)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [grpcio](https://grpc.io) ([source](https://redirect.github.com/grpc/grpc)) | minor | `==1.70.0` -> `==1.71.0` |

---

### Release Notes

<details>
<summary>grpc/grpc (grpcio)</summary>

### [`v1.71.0`](https://redirect.github.com/grpc/grpc/releases/tag/v1.71.0)

[Compare Source](https://redirect.github.com/grpc/grpc/compare/v1.70.0...v1.71.0)

This is release gRPC Core 1.71.0 (gears).

For gRPC documentation, see [grpc.io](https://grpc.io/). For previous releases, see [Releases](https://redirect.github.com/grpc/grpc/releases).

This release contains refinements, improvements, and bug fixes.

## Core

-   \[CallAttemptTracer] Fix call attempt tracer lifetimes for retries ([#&#8203;38729](https://redirect.github.com/grpc/grpc/issues/38729)). ([#&#8203;38796](https://redirect.github.com/grpc/grpc/pull/38796))
-   \[pick_first] fix bug that caused us to stop triggering connection attempts. ([#&#8203;38714](https://redirect.github.com/grpc/grpc/pull/38714))
-   \[CodeGen]\[CPP] Added support for service "deprecated" option. ([#&#8203;38493](https://redirect.github.com/grpc/grpc/pull/38493))
-   \[EventEngine] Add SetDefaultEventEngine API (and friends). ([#&#8203;38316](https://redirect.github.com/grpc/grpc/pull/38316))

## C++

-   \[build] Restrict grpc++\_public_hdrs target to internal visibility. ([#&#8203;38646](https://redirect.github.com/grpc/grpc/pull/38646))
-   \[Doc] Added C++17 cmake option. ([#&#8203;38432](https://redirect.github.com/grpc/grpc/pull/38432))

## Python

-   \[CI] Drop Python 3.8. ([#&#8203;38747](https://redirect.github.com/grpc/grpc/pull/38747))
-   \[Python] Support musl-linux binary wheels on arm64. ([#&#8203;38223](https://redirect.github.com/grpc/grpc/pull/38223))

## Ruby

-   \[ruby] Build/test ruby 3.4 and build native gems with Ruby 3.4 support. ([#&#8203;38338](https://redirect.github.com/grpc/grpc/pull/38338))

</details>

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Author: cq-bot

requirements.txt

@@ -1,6 +1,6 @@
 black==25.1.0
 grpcio-tools==1.70.0
-grpcio==1.70.0
+grpcio==1.71.0
 protobuf==5.29.4
 pyarrow==19.0.1
 pytest==8.3.5