Bump com.google.errorprone:error_prone_core from 2.25.0 to 2.26.1 (#80)

Bumps [com.google.errorprone:error_prone_core](https://github.com/google/error-prone) from 2.25.0 to 2.26.1.
- [Release notes](https://github.com/google/error-prone/releases)
- [Commits](google/error-prone@v2.25.0...v2.26.1)

---
updated-dependencies:
- dependency-name: com.google.errorprone:error_prone_core
  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.kts

@@ -48,7 +48,7 @@ dependencies {
         testImplementation("io.netty:netty-all:4.1.107.Final")
     }
 
-    errorprone("com.google.errorprone:error_prone_core:2.25.0")
+    errorprone("com.google.errorprone:error_prone_core:2.26.1")
     errorprone("jp.skypencil.errorprone.slf4j:errorprone-slf4j:0.1.22")
 }