fix: handle single value vis-type as highcharts chart instance #281

Job	Run time
test	1m 26s
build	2m 44s
lint	1m 23s
setup-matrix	3s
call-workflow-e2e-prod / compute-prod-versions	5s
call-workflow-e2e-prod / e2e-prod (2.40, 1, cypress/integration/confirmLeave.cy.js, cypress/integration/dimensions/orgUnit...	6m 0s
call-workflow-e2e-prod / e2e-prod (2.40, 2, cypress/integration/customErrors/visualizationError.cy.js, cypress/integration...	7m 26s
call-workflow-e2e-prod / e2e-prod (2.40, 3, cypress/integration/dimensions/calculations.cy.js, cypress/integration/dimensi...	8m 42s
call-workflow-e2e-prod / e2e-prod (2.40, 4, cypress/integration/dimensions/data.cy.js, cypress/integration/drillDown.cy.js...	6m 54s
call-workflow-e2e-prod / e2e-prod (2.40, 5, cypress/integration/dimensions/dynamic.cy.js, cypress/integration/interpretati...	6m 11s
call-workflow-e2e-prod / e2e-prod (2.41, 1, cypress/integration/confirmLeave.cy.js, cypress/integration/dimensions/orgUnit...	5m 43s
call-workflow-e2e-prod / e2e-prod (2.41, 2, cypress/integration/customErrors/visualizationError.cy.js, cypress/integration...	6m 51s
call-workflow-e2e-prod / e2e-prod (2.41, 3, cypress/integration/dimensions/calculations.cy.js, cypress/integration/dimensi...	9m 5s
call-workflow-e2e-prod / e2e-prod (2.41, 4, cypress/integration/dimensions/data.cy.js, cypress/integration/drillDown.cy.js...	7m 38s
call-workflow-e2e-prod / e2e-prod (2.41, 5, cypress/integration/dimensions/dynamic.cy.js, cypress/integration/interpretati...	6m 15s
call-workflow-e2e-prod / e2e-tests-success	1s
	1h 16m 27s

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