Fix typo in error message when a media ID isn't known (#17865) #3875

Job	Run time
changes	1s
check-lockfile	8s
lint-crlf	4s
lint-newsfile	0s
check-sampleconfig	45s
check-schema-delta	43s
lint-clippy	28s
Typechecking	1m 41s
lint-pydantic	44s
lint	33s
lint-rustfmt	33s
lint-clippy-nightly	31s
lint-readme	14s
linting-done	3s
calculate-test-jobs	3s
complement (monolith, SQLite)	3m 39s
portdb (3.9, 11)	3m 26s
trial-olddeps	3m 41s
complement (monolith, Postgres)	3m 40s
portdb (3.13, 17)	2m 40s
complement (workers, Postgres)	3m 30s
cargo-bench	0s
cargo-test	0s
trial-pypy	0s
trial (3.9, sqlite, all)	54s
sytest (bullseye)	3m 4s
trial (3.10, sqlite, all)	1m 28s
sytest (bullseye, postgres)	2m 8s
trial (3.11, sqlite, all)	1m 22s
sytest (bullseye, multi-postgres, workers)	2m 46s
trial (3.12, sqlite, all)	1m 30s
sytest (bullseye, multi-postgres, workers, asyncio)	2m 52s
trial (3.13, sqlite, all)	1m 15s
sytest (bullseye, asyncio)	2m 57s
trial (3.9, postgres, 11, all)	59s
sytest (bullseye, postgres, asyncio)	2m 10s
trial (3.13, postgres, 17, all)	1m 9s
sytest (testing, postgres)	1m 52s
trial (3.9, sqlite)	1m 9s
export-data	1s
tests-done	2s
	54m 45s

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