History of b64url 1 change

In crates/hub/src/oidc.rs, lines 188–198 on 66fd9d6b145201f17500e55103fc78c7608571da3222858c350fa6d0fe925006. Every change that wrote or deleted one of these lines, or deleted a line from between them. Exact, because each line keeps its identity across edits; edits elsewhere in the file are not here. Also: oxy log -L 188,198:crates/hub/src/oidc.rs.