Bump edu.wpi.first.GradleRIO from 2026.1.1 to 2026.2.1 (#113)

Bumps edu.wpi.first.GradleRIO from 2026.1.1 to 2026.2.1.

---
updated-dependencies:
- dependency-name: edu.wpi.first.GradleRIO
  dependency-version: 2026.2.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

build.gradle

@@ -1,6 +1,6 @@
 plugins {
     id "java"
-    id "edu.wpi.first.GradleRIO" version "2026.1.1"
+    id "edu.wpi.first.GradleRIO" version "2026.2.1"
     id "com.peterabeles.gversion" version "1.10.3"
     id "com.diffplug.spotless" version "8.0.+"
     id "io.freefair.lombok" version "9.1.+"