This issue will track the implementation of the SLSA v1.0 predicate in Chains

• Migrate provenance.configSource field to provenance.refSource: Migrate from Provenance.ConfigSource to Provenance.RefSource #799
• Bump intoto-golang to v0.8.0 for slsav1.0 provenance support: Manually bump in-toto-golang to v0.8.0 #795
• resolved dependencies based on materials: Introduce Resolved dependencies for SLSA v1.0 predicate #798
• external and internal parameters based on invocation: Slsa1.0 params, builderID, buildType, subjects, metadata, byProducts #800
• byproducts and subjects: Slsa1.0 params, builderID, buildType, subjects, metadata, byProducts #800
• builder ID, version and builder dependencies, metadata: Slsa1.0 params, builderID, buildType, subjects, metadata, byProducts #800
• wire up: configure slsa/v2alpha2, e2e tests, documentation.

related issue: #728