fix(deps): update dependency com.google.protobuf:protobuf-bom to v4.29.0 (#6917)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Jack Berg <[email protected]>

Author: renovate[bot]

dependencyManagement/build.gradle.kts

@@ -10,7 +10,7 @@ rootProject.extra["versions"] = dependencyVersions
 val DEPENDENCY_BOMS = listOf(
   "com.fasterxml.jackson:jackson-bom:2.18.2",
   "com.google.guava:guava-bom:33.3.1-jre",
-  "com.google.protobuf:protobuf-bom:4.28.3",
+  "com.google.protobuf:protobuf-bom:4.29.0",
   "com.linecorp.armeria:armeria-bom:1.31.1",
   "com.squareup.okhttp3:okhttp-bom:4.12.0",
   "com.squareup.okio:okio-bom:3.9.1", // applies to transitive dependencies of okhttp

exporters/otlp/common/build.gradle.kts

@@ -29,6 +29,7 @@ dependencies {
 
   testImplementation("com.fasterxml.jackson.core:jackson-databind")
   testImplementation("com.google.protobuf:protobuf-java-util")
+  testImplementation("com.google.guava:guava")
   testImplementation("io.opentelemetry.proto:opentelemetry-proto")
 
   jmhImplementation(project(":sdk:testing"))