Update package metadata for all packages

[lzchen]

Following this pr, remove setup.py, setup.cfg in favor of pyproject.toml to specify metadata for all packages. This issue can be used as a overall tracking issue. Feel free to open up individual issues per package and link them to this one.

[ofek]

Strategy is running hatch new --init then light touch-ups + removal of setup.py, setup.cfg, and MANIFEST.in

Progress:

• docs/examples/error_handler/error_handler_0 (PR Update package metadata docs/examples/error_handler #2914)
• docs/examples/error_handler/error_handler_1 (PR Update package metadata docs/examples/error_handler #2914)
• exporter/opentelemetry-exporter-jaeger (PR Update package metadata opentelemetry-exporter-jaeger #2894)
• exporter/opentelemetry-exporter-jaeger-proto-grpc (PR Update package metadata opentelemetry-exporter-jaeger-proto-grpc #2895)
• exporter/opentelemetry-exporter-jaeger-thrift (PR Update package metadata opentelemetry-exporter-jaeger-thrift #2896)
• exporter/opentelemetry-exporter-opencensus (PR Update package metadata opentelemetry-exporter-opencensus #2897)
• exporter/opentelemetry-exporter-otlp (PR Update package metadata opentelemetry-exporter-otlp #2898)
• exporter/opentelemetry-exporter-otlp-proto-grpc (PR Update package metadata opentelemetry-exporter-otlp-proto-grpc #2899)
• exporter/opentelemetry-exporter-otlp-proto-http (PR Update package metadata opentelemetry-exporter-otlp-proto-http #2900)
• exporter/opentelemetry-exporter-prometheus (PR Update package metadata opentelemetry-exporter-prometheus #2901)
• exporter/opentelemetry-exporter-zipkin (PR Update package metadata opentelemetry-exporter-zipkin #2902)
• exporter/opentelemetry-exporter-zipkin-json (PR Update package metadata opentelemetry-exporter-zipkin-json #2903)
• exporter/opentelemetry-exporter-zipkin-proto-http (PR Update package metadata opentelemetry-exporter-zipkin-proto-http #2904)
• opentelemetry-api (PR Update package metadata opentelemetry-api #2867)
• opentelemetry-proto (PR Update package metadata opentelemetry-proto #2905)
• opentelemetry-sdk (PR Update package metadata opentelemetry-sdk #2906)
• opentelemetry-semantic-conventions (PR Update package metadata opentelemetry-semantic-conventions #2907)
• propagator/opentelemetry-propagator-b3 (PR Update package metadata opentelemetry-propagator-b3 #2908)
• propagator/opentelemetry-propagator-jaeger (PR Update package metadata opentelemetry-propagator-jaeger #2909)
• shim/opentelemetry-opentracing-shim (PR Update package metadata opentelemetry-opentracing-shim #2912)
• tests/opentelemetry-test-utils (PR Update package metadata opentelemetry-test-utils #2913)