fix(versions): update Spring Boot to 2.1.7

[igdianov]

No description provided.

[codecov]

Codecov Report

Merging #159 into master will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master     #159   +/-   ##
=========================================
  Coverage     69.56%   69.56%           
  Complexity      450      450           
=========================================
  Files            33       33           
  Lines          2343     2343           
  Branches        343      343           
=========================================
  Hits           1630     1630           
  Misses          576      576           
  Partials        137      137

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 15a4008...72de17e. Read the comment docs.