CompatHelper: bump compat for IntervalRootFinding in [weakdeps] to 0.6, (keep existing compat) (#449)

Co-authored-by: CompatHelper Julia <[email protected]>

Author: github-actions[bot]

Project.toml

@@ -30,7 +30,7 @@ ChainRulesCore = "1"
 ChainRulesTestUtils = "1"
 CommonSolve = "0.1, 0.2"
 ForwardDiff = "0.10"
-IntervalRootFinding = "0.5"
+IntervalRootFinding = "0.5, 0.6"
 JSON = "0.21"
 Polynomials = "1,2,3,4"
 Printf = "<0.0.1, 1"