Upgrade proc-macro2 to 1.0.54 am: 9ed73418c7 am: aae936a18a Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/proc-macro2/+/2514439 Change-Id: Iddccca2a02fcfd228832a7c0c3b642a9c703fac0 Signed-off-by: Automerger Merge Worker <[email protected]>