Reapply "Change OTLP HTTP content_type default to binary (#2558)" (#2… #9259

Job	Run time
CMake gcc 13 (maintainer mode, sync)	8m 31s
CMake test (without otlp-exporter)	5m 44s
CMake test (with abseil)	5m 35s
CMake clang 15 (maintainer mode, abiv2)	14m 35s
CMake clang 15 (maintainer mode, async)	15m 15s
CMake clang 15 (maintainer mode, sync)	16m 58s
CMake gcc 13 (maintainer mode, async)	7m 57s
CMake msvc (maintainer mode)	8m 31s
CMake msvc (maintainer mode) with C++20	8m 15s
CMake test (with opentracing-shim)	4m 46s
CMake C++14 test(GCC)	5m 4s
CMake C++17 test(GCC)	5m 29s
CMake C++20 test(GCC)	9m 47s
CMake test (without otlp-exporter and with async export)	7m 24s
Bazel asan config	15m 55s
Bazel noexcept	13m 11s
Bazel nortti	13m 7s
Bazel on MacOS	14m 49s
Bazel	12m 26s
Bazel tsan config	15m 21s
Bazel with async export	13m 44s
Bazel valgrind	15m 28s
Bazel with external abseil	14m 20s
Benchmark	9m 25s
CMake do not install test (with otlp-exporter)	15m 10s
CMake install test (with abseil)	4m 20s
CMake test (with modern protobuf,grpc and abseil)	19m 39s
CMake test (build shared libraries with otlp-exporter and static gRPC)	15m 11s
CMake test (with otlp-exporter)	14m 35s
CMake C++20 test(Clang with libc++)	11m 12s
CMake C++23 test(Clang with libc++)	11m 57s
CMake C++23 test(GCC)	10m 18s
Copyright	14s
Format	32s
Plugin -> CMake	1m 36s
CMake -> exporter proto	12m 43s
Code coverage	12m 14s
DocFX check	1m 5s
markdown-lint	32s
misspell	10s
Bazel Windows	24m 45s
Plugin -> CMake Windows	7m 47s
CMake (With async export) -> exporter proto	12m 38s
CMake -> exporter proto (Build as DLL)	34m 0s
	7h 52m 15s

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