Update data/performance_indicators.yml with new dev KPIs

Why is this change being made?

• Update Commit to Merge KPI to include Sisense chart
• Add Product MRs by Type KPI
• Add Say/Do Ratios KPI

Does this MR meet the acceptance criteria?

Assign to DRI

• Did you assign this change to the correct DRI of the page or information you are changing?

Conformity

• Added description to this MR explaining the reasons for the proposed change, per say-why-not-just-what