Add minInterval: 1 to pipeline charts

This small change fixes an issue that caused the scale of the Y axis of
the pipeline analytics charts to render with strange units if the max
value of the chart was less than 1.

app/assets/javascripts/projects/pipelines/charts/components/pipeline_charts.vue

@@ -118,6 +118,7 @@ export default {
     },
     yAxis: {
       name: s__('Pipeline|Pipelines'),
+      minInterval: 1,
     },
   },
   get chartTitles() {

changelogs/unreleased/nfriend-add-mininterval-to-pipeline-charts.yml

+---
+title: Fix Y axis units of pipeline charts when values are small
+merge_request: 52024
+author:
+type: fixed