[1.x] Improve Catch-up Caching

[armiol]

Previously, CatchUpProcess used a repository cache to ensure that each process instance was interacting with the matching ProjectionRepository. However, the caching was tied up to the ID of the catch-up process, which eventually led to missing hits — when the steps of the process were processed on different servers.

This changeset addresses the issue by using the projection type URL as a caching key, and moving the cache population to the initialization phase of the corresponding Bounded Context.

The library version is bumped to 1.7.7-SNAPSHOT.4.

[armiol]

@dmitrykuzmin PTAL.

[dmitrykuzmin]

LGTM.

[codecov]

Codecov Report

Merging #1406 (abee9b3) into 1.x-dev (d335e13) will decrease coverage by 0.03%.
The diff coverage is 89.47%.

@@              Coverage Diff              @@
##             1.x-dev    #1406      +/-   ##
=============================================
- Coverage      91.02%   90.99%   -0.04%     
+ Complexity      4791     4788       -3     
=============================================
  Files            614      615       +1     
  Lines          15203    15197       -6     
  Branches         860      859       -1     
=============================================
- Hits           13839    13828      -11     
- Misses          1093     1100       +7     
+ Partials         271      269       -2