[3.13] gh-124040: Adjust few tests in testHypot/testDist to get exactly computed results (GH-124042) (#124235)

gh-124040: Adjust few tests in testHypot/testDist to get exactly computed results (GH-124042)
(cherry picked from commit 4420cf4dc9ef7bd3c1c9b5465fa9397304bf0110)

Co-authored-by: Sergey B Kirpichev <skirpichev@gmail.com>