ci: workspace rust-version = '1.80' is below the actual MSRV of the resolved dependency tree (>=1.88)

[metavacua]

Problem

Cargo.toml at the workspace root declares:

[workspace.package]
rust-version = "1.80"

However, multiple transitive dependencies in the current resolved graph declare higher minimum Rust versions:

Crate	Declared rust-version
home >= 0.5.12	1.88
cookie_store >= 0.22.1	1.88
time crate family	1.85+ (edition2024 Cargo feature)
cranelift-control >= 0.123	1.85+

Running cargo-msrv verify at Rust 1.80 fails because dependency resolution itself fails — these crates are incompatible at that toolchain.

Impact

The declared rust-version is misleading: anyone attempting to build at 1.80 (following the workspace's stated MSRV) will get a resolution error rather than a compile error with a clear MSRV message. CI that enforces MSRV (e.g., cargo-msrv verify) will report the declaration as incorrect.

Fix

Update Cargo.toml:

[workspace.package]
rust-version = "1.88"

The fork (metavacua/larql-to-sparql) already carries this change.

Optionally, also opt crates into the MSRV gate by adding rust-version.workspace = true to each crate's [package] block so that cargo-msrv verify can verify per-crate.