build(c): bump vendored fmt #240

Job	Run time
check (macOS, adbcdrivermanager) / r-check	1m 52s
check (macOS, adbcflightsql) / r-check	1m 50s
check (macOS, adbcpostgresql) / r-check	1m 48s
check (macOS, adbcsnowflake) / r-check	1m 46s
check (macOS, adbcsqlite) / r-check	1m 43s
check (ubuntu, adbcdrivermanager) / r-check	1m 50s
check (ubuntu, adbcflightsql) / r-check	2m 1s
check (ubuntu, adbcpostgresql) / r-check	1m 43s
check (ubuntu, adbcsnowflake) / r-check	1m 50s
check (ubuntu, adbcsqlite) / r-check	1m 47s
check (windows, adbcdrivermanager) / r-check	1m 46s
check (windows, adbcflightsql) / r-check	1m 47s
check (windows, adbcpostgresql) / r-check	1m 47s
check (windows, adbcsnowflake) / r-check	1m 45s
check (windows, adbcsqlite) / r-check	1m 44s
	26m 59s

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