[TRANSLATIONS] config.title key has been moved out of config and into the root of strings.json. Starting Home Assistant 0.109 you only need to define this key in the root if the title needs to be different than the name of your integration in the manifest.

[MANIFEST] No 'version' key in the manifest file. This will cause a future version of Home Assistant to block this integration.

Use hacs/integration/action@main instead of hacs/integration/action@master

type: custom:apexcharts-card
graph_span: 2d
header:
  show: true
  title: Carbon Intensity Forecast
now:
  show: true
span:
  start: hour
series:
  - entity: sensor.carbon_intensity_uk
    name: Forecast
    data_generator: >
      return [[entity.attributes.forecast[0].from,
      entity.attributes.forecast[0].intensity],
      [entity.attributes.forecast[1].from,
      entity.attributes.forecast[1].intensity],
      [entity.attributes.forecast[3].from,
      entity.attributes.forecast[3].intensity],
      [entity.attributes.forecast[4].from,
      entity.attributes.forecast[4].intensity],
      [entity.attributes.forecast[5].from,
      entity.attributes.forecast[5].intensity],
      [entity.attributes.forecast[6].from,
      entity.attributes.forecast[6].intensity],
      [entity.attributes.forecast[7].from,
      entity.attributes.forecast[7].intensity],
      [entity.attributes.forecast[8].from,
      entity.attributes.forecast[8].intensity],
      [entity.attributes.forecast[9].from,
      entity.attributes.forecast[9].intensity],
      [entity.attributes.forecast[10].from,
      entity.attributes.forecast[10].intensity],
      [entity.attributes.forecast[11].from,
      entity.attributes.forecast[11].intensity],
      [entity.attributes.forecast[12].from,
      entity.attributes.forecast[12].intensity],
      [entity.attributes.forecast[13].from,
      entity.attributes.forecast[13].intensity],
      [entity.attributes.forecast[14].from,
      entity.attributes.forecast[14].intensity],
      [entity.attributes.forecast[15].from,
      entity.attributes.forecast[15].intensity],
      [entity.attributes.forecast[16].from,
      entity.attributes.forecast[16].intensity],
      [entity.attributes.forecast[17].from,
      entity.attributes.forecast[17].intensity],
      [entity.attributes.forecast[18].from,
      entity.attributes.forecast[18].intensity],
      [entity.attributes.forecast[19].from,
      entity.attributes.forecast[19].intensity],
      [entity.attributes.forecast[20].from,
      entity.attributes.forecast[20].intensity],
      [entity.attributes.forecast[21].from,
      entity.attributes.forecast[21].intensity],
      [entity.attributes.forecast[22].from,
      entity.attributes.forecast[22].intensity],
      [entity.attributes.forecast[23].from,
      entity.attributes.forecast[23].intensity],
      [entity.attributes.forecast[24].from,
      entity.attributes.forecast[24].intensity],
      [entity.attributes.forecast[25].from,
      entity.attributes.forecast[25].intensity],
      [entity.attributes.forecast[26].from,
      entity.attributes.forecast[26].intensity],
      [entity.attributes.forecast[27].from,
      entity.attributes.forecast[27].intensity],
      [entity.attributes.forecast[28].from,
      entity.attributes.forecast[28].intensity],
      [entity.attributes.forecast[29].from,
      entity.attributes.forecast[29].intensity],
      [entity.attributes.forecast[30].from,
      entity.attributes.forecast[30].intensity],
      [entity.attributes.forecast[31].from,
      entity.attributes.forecast[31].intensity],
      [entity.attributes.forecast[32].from,
      entity.attributes.forecast[32].intensity],
      [entity.attributes.forecast[33].from,
      entity.attributes.forecast[33].intensity],
      [entity.attributes.forecast[34].from,
      entity.attributes.forecast[34].intensity],
      [entity.attributes.forecast[35].from,
      entity.attributes.forecast[35].intensity],
      [entity.attributes.forecast[36].from,
      entity.attributes.forecast[36].intensity],
      [entity.attributes.forecast[37].from,
      entity.attributes.forecast[37].intensity],
      [entity.attributes.forecast[38].from,
      entity.attributes.forecast[38].intensity],
      [entity.attributes.forecast[39].from,
      entity.attributes.forecast[39].intensity],
      [entity.attributes.forecast[40].from,
      entity.attributes.forecast[40].intensity],
      [entity.attributes.forecast[41].from,
      entity.attributes.forecast[41].intensity],
      [entity.attributes.forecast[42].from,
      entity.attributes.forecast[42].intensity],
      [entity.attributes.forecast[43].from,
      entity.attributes.forecast[43].intensity],
      [entity.attributes.forecast[44].from,
      entity.attributes.forecast[44].intensity],
      [entity.attributes.forecast[45].from,
      entity.attributes.forecast[45].intensity],
      [entity.attributes.forecast[46].from,
      entity.attributes.forecast[46].intensity],
      [entity.attributes.forecast[47].from,
      entity.attributes.forecast[47].intensity]];