deps: update dependency org.bouncycastle:bcpkix-jdk18on to v1.86

[renovate-bot]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
org.bouncycastle:bcpkix-jdk18on (source)	1.85 → 1.86

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[gemini-code-assist]

Code Review

This pull request updates the bcpkix-jdk18on dependency version in pom.xml from 1.85 to 1.86. However, a review comment points out that this creates a version mismatch with bcutil-jdk18on (which remains at 1.85). Because Bouncy Castle libraries are highly interdependent, this mismatch could lead to runtime issues such as NoSuchMethodError or ClassCastException. It is recommended to align all Bouncy Castle dependencies to the same version.

[gemini-code-assist]

Updating bcpkix-jdk18on to 1.86 while bcutil-jdk18on remains at 1.85 (line 109) creates a version mismatch. Bouncy Castle libraries are highly interdependent, and mismatched versions frequently cause runtime issues such as NoSuchMethodError or ClassCastException. To prevent this, all Bouncy Castle dependencies should be aligned to the same version.