Merge branch 'prepare-for-v3.0.0' into v3_remove_forwarding_headers

Author: scotthart

.bazelrc

@@ -131,3 +131,4 @@ build:msan --linkopt=-L/usr/lib/x86_64-unknown-linux-gnu
 
 # --config otel2: Open Telemetery ABI version 2
 build:otel2 --cxxopt=-DOPENTELEMETRY_ABI_VERSION_NO=2
+build:otel2 --@opentelemetry-cpp//api:abi_version_no=2

MODULE.bazel

@@ -33,7 +33,7 @@ bazel_dep(name = "protobuf", version = "33.1", repo_name = "com_google_protobuf"
 bazel_dep(name = "boringssl", version = "0.20251124.0")
 bazel_dep(name = "nlohmann_json", version = "3.12.0.bcr.1")
 bazel_dep(name = "curl", version = "8.8.0.bcr.3")
-bazel_dep(name = "opentelemetry-cpp", version = "1.22.0")
+bazel_dep(name = "opentelemetry-cpp", version = "1.24.0")
 bazel_dep(name = "rules_proto", version = "7.1.0")
 bazel_dep(name = "rules_python", version = "1.6.3")
 bazel_dep(name = "rules_apple", version = "4.3.2")

google/cloud/bigtable/internal/metrics_test.cc

@@ -142,6 +142,17 @@ class MockMeter : public opentelemetry::metrics::Meter {
                opentelemetry::nostd::string_view,
                opentelemetry::nostd::string_view),
               (noexcept, override));
+
+  MOCK_METHOD(uintptr_t,
+              RegisterCallback,  // NOLINT(bugprone-exception-escape)
+              (opentelemetry::metrics::MultiObservableCallbackPtr, void*,
+               opentelemetry::nostd::span<
+                   opentelemetry::metrics::ObservableInstrument*>),
+              (noexcept, override));
+
+  MOCK_METHOD(void,
+              DeregisterCallback,  // NOLINT(bugprone-exception-escape)
+              (uintptr_t), (noexcept, override));
 #endif
 
   MOCK_METHOD(opentelemetry::nostd::shared_ptr<ObservableInstrument>,