Add tracing (#1942)

Cargo.lock

Cargo.toml

crates/api/Cargo.toml

crates/api_common/Cargo.toml

crates/api_crud/Cargo.toml

crates/api_crud/src/post/create.rs

crates/api_crud/src/site/read.rs

crates/apub/Cargo.toml

crates/apub/src/activities/mod.rs

crates/apub/src/fetcher/webfinger.rs

crates/apub/src/http/community.rs

crates/apub/src/http/mod.rs

crates/apub/src/http/person.rs

crates/apub/src/objects/community.rs

crates/apub_lib/Cargo.toml

crates/apub_lib/src/activity_queue.rs

crates/apub_lib/src/object_id.rs

crates/apub_lib/src/signatures.rs

crates/db_schema/Cargo.toml

crates/db_views/Cargo.toml