Upgrade proc-macro2 to 1.0.54 am: 9ed73418c7 am: aae936a18a am: 2873cb66cf

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/proc-macro2/+/2514439

Change-Id: Ib69dcf9dc027a66723252fd89b3ff2920f493c43
Signed-off-by: Automerger Merge Worker <[email protected]>