[tibber] Quarter-hourly prices (#19312)

* adjust price query resolution

Signed-off-by: Bernd Weymann <bernd.weymann@gmail.com>

CODEOWNERS

@@ -401,7 +401,7 @@
 /bundles/org.openhab.binding.tesla/ @kgoderis
 /bundles/org.openhab.binding.teslapowerwall/ @psmedley
 /bundles/org.openhab.binding.teslascope/ @psmedley
-/bundles/org.openhab.binding.tibber/ @kjoglum
+/bundles/org.openhab.binding.tibber/ @kjoglum @weymann
 /bundles/org.openhab.binding.tivo/ @mlobstein
 /bundles/org.openhab.binding.touchwand/ @roieg
 /bundles/org.openhab.binding.tplinkrouter/ @olivierkeke

bundles/org.openhab.binding.tibber/src/main/resources/graphql/prices.graphql

@@ -2,7 +2,7 @@
   viewer {
     home(id: \"%s\") {
       currentSubscription {
-        priceInfo {
+        priceInfo(resolution: QUARTER_HOURLY) {
           tomorrow {
             startsAt
             total