build(deps): update fvm_ipld_bitfield requirement from 0.6.0 to 0.7.1 (…

…#17)

Updates the requirements on [fvm_ipld_bitfield](https://github.com/filecoin-project/ref-fvm) to permit the latest version.
- [Changelog](https://github.com/filecoin-project/ref-fvm/blob/master/doc/testnet-release-process.md)
- [Commits](https://github.com/filecoin-project/ref-fvm/compare/fvm_ipld_amt@v0.6.0...fvm_ipld_bitfield@v0.7.1)

---
updated-dependencies:
- dependency-name: fvm_ipld_bitfield
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

gpbft/Cargo.toml

@@ -11,7 +11,7 @@ edition.workspace = true
 ahash = { workspace = true }
 base32 = "0.5.1"
 cid = { version = "0.10.1", features = ["std"] }
-fvm_ipld_bitfield = "0.6.0"
+fvm_ipld_bitfield = "0.7.1"
 fvm_ipld_encoding = { workspace = true }
 keccak-hash = { workspace = true }
 num-bigint = { version = "0.4.6", features = ["serde"] }