Bump tolerance to 7%

Author: ianayl

devops/benchmarking/config.ini

@@ -23,7 +23,7 @@ recorded = Median,StdDev
 ; the historical average. Metrics not included here are not compared against
 ; when passing/failing benchmark results.
 ; Format: comma-separated list of <metric>:<deviation percentage in decimals>
-tolerances = Median:0.5
+tolerances = Median:0.7
 
 ; Options for computing historical averages
 [average]