tests: Fix the canned gossmap

The gossip_store version was bumbed to 10 in PR ElementsProject#5239 and ElementsProject#5375 has
apparently not been rebased on top of that when it was merged, causing
the `run-gossmap_canned` test to fail when parsing the v9 gossip
store.

Changelog-None

common/test/run-gossmap_canned.c

@@ -29,7 +29,7 @@ void towire_channel_id(u8 **pptr UNNEEDED, const struct channel_id *channel_id U
 
 /* Canned gossmap, taken from od -tx1 -Anone -v < /tmp/ltests-rtchpzh1/test_peers_1/lightning-2/regtest/gossip_store  | sed 's/ / 0x/g'| cut -c2- | sed -e 's/ /, /' -e 's/$/,/' */
 static u8 canned_map[] = {
-	0x09,0x00,0x00,0x01,0xbc,0x4a,0xe8,0x33,0xa0,0x00,0x00,0x00,0x00,0x10,0x08,0x00,
+	0x0a,0x00,0x00,0x01,0xbc,0x4a,0xe8,0x33,0xa0,0x00,0x00,0x00,0x00,0x10,0x08,0x00,
 	0x00,0x00,0x00,0x00,0x0f,0x42,0x40,0x01,0xb0,0x01,0x00,0x00,0x00,0x00,0x00,0x00,
 	0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 	0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,