Fix for malformed URL when using contours minutes/meters.

[cafesilencio]

The recent addition of contours_meters for the Isochrone API resulted in a malformed URL. This is a fix for that regression.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 78.03%. Comparing base (f519b6f) to head (da8167a).
Report is 1 commits behind head on main.

❗ Current head da8167a differs from pull request most recent head 2b966d2

Please upload reports for the commit 2b966d2 to get more accurate results.

@@             Coverage Diff              @@
##               main    #1599      +/-   ##
============================================
- Coverage     78.07%   78.03%   -0.05%     
  Complexity     1066     1066              
============================================
  Files           158      158              
  Lines          4493     4493              
  Branches        630      630              
============================================
- Hits           3508     3506       -2     
  Misses          714      714              
- Partials        271      273       +2     

Files with missing lines	Coverage Δ
...java/com/mapbox/api/isochrone/MapboxIsochrone.java	86.31% <100.00%> (-2.11%)	⬇️