feat: fix security alert related to 'com.squareup.okio:okio' version '>= 2.0.0-RC1 < 3.4.0'

[JPPortier]

Upgrade com.squareup.okhttp3 version to remove dependency onto package firing security alert
New dependency version: 3.6.0

mvn dependency:tree
...
[INFO] +- com.squareup.okhttp3:okhttp:jar:4.12.0:test
[INFO] |  +- com.squareup.okio:okio:jar:3.6.0:test
[INFO] |  |  \- com.squareup.okio:okio-jvm:jar:3.6.0:test
...

[github-actions]

Dependency Review

✅ No vulnerabilities or license issues found.

Scanned Manifest Files

pom.xml

• com.squareup.okhttp3:okhttp@4.12.0
• com.squareup.okhttp3:okhttp@4.11.0

/home/runner/work/sinch-sdk-java/sinch-sdk-java/pom.xml

• com.squareup.okhttp3:okhttp@4.12.0
• com.squareup.okio:okio@3.6.0
• com.squareup.okio:okio-jvm@3.6.0
• org.jetbrains.kotlin:kotlin-stdlib@1.8.21
• org.jetbrains.kotlin:kotlin-stdlib-common@1.9.10
• org.jetbrains.kotlin:kotlin-stdlib-jdk7@1.8.21
• org.jetbrains.kotlin:kotlin-stdlib-jdk8@1.8.21
• com.squareup.okhttp3:okhttp@4.11.0
• com.squareup.okio:okio@3.2.0
• com.squareup.okio:okio-jvm@3.2.0
• org.jetbrains.kotlin:kotlin-stdlib@1.6.20
• org.jetbrains.kotlin:kotlin-stdlib-common@1.6.20
• org.jetbrains.kotlin:kotlin-stdlib-jdk7@1.6.20
• org.jetbrains.kotlin:kotlin-stdlib-jdk8@1.6.20