Update core-contracts version v0.7.7->v0.7.9

[jordanschalm]

Integrate a critical bug-fix on the FlowClusterQC contract from onflow/flow-core-contracts#244

[kc1116]

LGTM

[codecov-commenter]

Codecov Report

Merging #1278 (05adb8f) into master (75dee2c) will decrease coverage by 0.02%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #1278      +/-   ##
==========================================
- Coverage   54.83%   54.80%   -0.03%     
==========================================
  Files         502      502              
  Lines       31851    31852       +1     
==========================================
- Hits        17467    17458       -9     
- Misses      12027    12038      +11     
+ Partials     2357     2356       -1     

Flag	Coverage Δ
unittests	54.80% <100.00%> (-0.03%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
fvm/bootstrap.go	74.04% <100.00%> (+0.05%)	⬆️
module/mempool/epochs/transactions.go	94.73% <0.00%> (-5.27%)	⬇️
...sus/approvals/assignment_collector_statemachine.go	42.30% <0.00%> (-4.81%)	⬇️
...ngine/common/synchronization/finalized_snapshot.go	68.75% <0.00%> (-4.17%)	⬇️
engine/collection/synchronization/engine.go	62.90% <0.00%> (-1.08%)	⬇️

---

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 75dee2c...05adb8f. Read the comment docs.

[jordanschalm]

bors try

[bors]

try

Build succeeded:

• Lint
• Unit Tests (1.16)
• Integration Tests (1.15)
• Integration Tests (1.16)
• Unit Tests (1.15)

[jordanschalm]

bors merge

[bors]

Build succeeded:

• Integration Tests (1.15)
• Integration Tests (1.16)
• Lint
• Unit Tests (1.15)
• Unit Tests (1.16)