docs: add changelog for v0.8.0

CHANGELOG.md

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+# Changelog
+
+## v0.8.0
+### Added
+
+- Migrated repositories https://github.com/ipfs/boxo/commit/038bdd291def0ec2e4202254bd57a9c573029d16
+  - github.com/ipfs/interface-go-ipfs-core => ./coreiface
+  - github.com/ipfs/go-pinning-service-http-client => ./pinning/remote/client
+  - github.com/ipfs/go-path => ./path
+  - github.com/ipfs/go-namesys => ./namesys
+  - github.com/ipfs/go-mfs => ./mfs
+  - github.com/ipfs/go-ipfs-provider => ./provider
+  - github.com/ipfs/go-ipfs-pinner => ./pinning/pinner
+  - github.com/ipfs/go-ipfs-keystore => ./keystore
+  - github.com/ipfs/go-filestore => ./filestore
+  - github.com/ipfs/go-ipns => ./ipns
+  - github.com/ipfs/go-blockservice => ./blockservice
+  - github.com/ipfs/go-ipfs-chunker => ./chunker
+  - github.com/ipfs/go-fetcher => ./fetcher
+  - github.com/ipfs/go-ipfs-blockstore => ./blockstore
+  - github.com/ipfs/go-ipfs-posinfo => ./filestore/posinfo
+  - github.com/ipfs/go-ipfs-util => ./util
+  - github.com/ipfs/go-ipfs-ds-help => ./datastore/dshelp
+  - github.com/ipfs/go-verifcid => ./verifcid
+  - github.com/ipfs/go-ipfs-exchange-offline => ./exchange/offline
+  - github.com/ipfs/go-ipfs-routing => ./routing
+  - github.com/ipfs/go-ipfs-exchange-interface => ./exchange
+  - github.com/ipfs/go-unixfs => ./ipld/unixfs
+  - github.com/ipfs/go-merkledag => ./ipld/merkledag
+  - github.com/ipld/go-car => ./ipld/car
+- Added a migration tool to aid in migrating from the migrated repositories to Boxo, see the documentation here: https://github.com/ipfs/boxo/blob/main/README.md#migrating-to-boxo
+- Added tracing and metrics to the refactored gateway for its IPFS backend
+
+
+### Changed
+
+- Removed a mention of "bitswap" in blockservice debug logs
+- Changed the Bitswap message package from "bitswap.message.pb" to "bitswap.message.v1.pb" to avoid protobuf panics due to duplicate registration with [go-bitswap](https://github.com/ipfs/go-bitswap)
+- Remove a busyloop in blockservice getBlocks by removing batching when caching
+
+### Deprecated
+
+### Removed
+
+### Fixed
+
+- Ensure dag-cbor/json codecs are registered in the gateway handler
+- Refactor the Gateway API to operate on higher level semantics
+- Fixed a panic in the gateway handler when returning errors 
+
+### Security