Update dd-opentracing-cpp to rev 3 via SR 757566
    
    https://build.opensuse.org/request/show/757566
    by user dimstar_suse
    - Update to version 1.1.2:
      * Fix nginx example / sandbox (#114)
      * Generate int64 values instead of uint64 (#116)
      * version bump for 1.1.1 and version check scripts enforced by CI (#113)
      * Build / install updates  (#112)
      * Changed how tests are built for faster compilation (#109)
      * Replace ':' in span tag keys with '.' (#107) (forwarded request 757564 from mrostecki)