near-sdk (Rust) 5.6.0

Other

• updates near-* dependencies to 0.27 release (#1254)
• freeze 1.81 for near-workspaces paths (temporarily) (#1250)
• Benchmark near collections and provide the results as the reference in the docs (#1248)
• Updated near-workspaces to 0.14 version (matching 0.26 near-* release) (#1246)