Update python-mpmath to version 1.3.0 / rev 6 via SR 1114257
    
    https://build.opensuse.org/request/show/1114257
    by user dirkmueller + anag+factory
    - Update to 1.3.0 (bsc#1215804, CVE-2021-29063):
      * Security issues:
        - Fixed ReDOS vulnerability in mpmathify() (CVE-2021-29063)
      * Features:
        - Added quadsubdiv() for numerical integration with adaptive path splitting
        - Added the Cohen algorithm for inverse Laplace transforms
        - Some speedup of matrix multiplication
        - Optimizations to Carlson elliptic integrals
        - Added signal functions (squarew(), trianglew(), sawtoothw(), unit_triangle()
        sigmoidw())
      * Bug fixes:
        - Correct mpf initialization from tuple for finf and fninf
        - Support QR decomposition for matrices of width 0 and 1
        - Fixed some cases where elliprj() gave inaccurate results
        - Fixed cases where digamma() hangs for complex input
        - Fixed cases of polylog() with integer-valued parame