Update deny.toml for new cargo-deny version

deny.toml

@@ -1,21 +1,15 @@
 # I'm only targeting Linux currently, and this project is only COMPATIBLE with
 # POSIX targets due to the dependency on `/usr/local/bin/pycm19a.py`, so silence warnings
 # about transitive dependencies specific to other targets.
+[graph]
 targets = [
     { triple = "i686-unknown-linux-gnu" },
     { triple = "i686-unknown-linux-musl" },
     { triple = "x86_64-unknown-linux-gnu" },
     { triple = "x86_64-unknown-linux-musl" },
 ]
 
-[advisories]
-vulnerability = "deny"
-unmaintained = "warn"
-yanked = "warn"
-notice = "warn"
-
 [licenses]
-unlicensed = "deny"
 allow = [
     # See https://spdx.org/licenses/ for list of possible licenses
     # [possible values: any SPDX 3.11 short identifier (+ optional exception)].