Update okhttp monorepo to v5.4.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
com.squareup.okhttp3:okhttp-coroutines (source)	5.3.2 → 5.4.0
com.squareup.okhttp3:okhttp (source)	5.3.2 → 5.4.0

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Release Notes

square/okhttp (com.squareup.okhttp3:okhttp-coroutines)

v5.4.0

2026-06-08

• New: Add superpowers to interceptors. Interceptors can now override anything settable on
  OkHttpClient.Builder, such as the cache, connection pool, socket factory, and DNS. We expect
  this will allow most users to use interceptors everywhere, insted of mixing and matching
  interceptors with custom Call.Factory wrappers.
• Fix: Limit each HTTP/2 response to 256 KiB of total headers.
• Upgrade: [kotlinx.coroutines 1.11.0][coroutines_1_11_0]. This is used by the optional
  okhttp-coroutines artifact.
• Upgrade: [GraalVM 25.0.3][graalvm_25].
• Upgrade: [Okio 3.17.0][okio_3_17_0].

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