MINOR: Bump com.squareup.okio:okio-jvm from 3.17.0 to 3.18.2

[dependabot]

Bumps com.squareup.okio:okio-jvm from 3.17.0 to 3.18.2.

Changelog

Sourced from com.squareup.okio:okio-jvm's changelog.

Version 3.18.2

2026-09-04

• Fix: Don't change behavior of base64-encoding. We introduced a bug in Okio 3.18.1 that caused base64 strings to be encoded without padding, even though the previous and expected behavior is to encode such strings with padding (= characters). The bug impacts callers who compiled against Okio releases < 3.18.0, and executed on Okio releases >= 3.18.

Version 3.18.1

2026-07-28

• Fix: Restore binary-compatibility with Okio 3.17.x for Kotlin/Native users. When we introduced the new base64() function, we inadvertently changed the binary signature! Ugh! This is now fixed and we've automated binary-compatibility checking for Kotlin/Native going forward.

Version 3.18.0

2026-07-21

• Fix: Use wide character APIs to better support of non-UTF-8 filesystems on Windows.
• Fix: Don't crash in AssetFileSystem.exists() when the underlying storage throws a FileNotFoundException.
• Fix: Load WASI paths relative to their preopen. The platform behavior recently changed in NodeJS, causing our WasiFileSystem to be unable to access files!
• New: Optionally ignore whitespace when decoding hexadecimal.
• New: Optionally omit padding when encoding Base64.
• New: BufferedSource.readUInt(), BufferedSink.writeUInt(), and similar functions for UByte, UShort and ULong. Also add support for unsigned and little-endian.
• New: BufferedSink.utf8Appendable(). Use this to adapt an Okio sink to an Appendable.
• New: Source.limit() returns a wrapped source with a strict limit on how many bytes are returned.
• New: ByteString.equals(other, constantTime) for subtle defense against timing attacks.

Commits

• 9403a09 Prepare for release 3.18.2.
• 5a1c153 Fix an unintended behavior change with base64 padding (#1869)
• 9f564fd Prepare for release 3.18.1.
• 531cf07 Hide some accidentally public symbols (#1839)
• e7ef43d Update GitHub Actions for new secrets and branch (#1840)
• a6730de Start enforcing binary compatibility for Kotlin/Native (#1838)
• e75a7e9 Update dependency com.android.tools.build:gradle to v9.3.1 (#1836)
• 9d21d5c Fix interchanged docs links for 1.x and 2.x API (#1835)
• bff1dff Track new docs locations from Dokka v2 (#1833)
• 3b16d9b Grant write permission to the publish-website action (#1832)
• Additional commits viewable in compare view

[jbonofre]

@dependabot rebase