docs(changelog): credit #1495 in the fragment

Co-Authored-By: Claude Opus 5.5 <[email protected]>

changelog.d/1495-traffic-paired-sides.md

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+- Street Traffic gives the two TomTom `one_side` lines of one two-way street
+  a two-way direction's half share of simulated vehicles each, so the street
+  is no longer drawn twice as dense as the same street from OpenStreetMap
+  (quanticsoul4772, #1495).