meta: include project provided assumes in snapd.yaml

[sergiusens]

• Have you followed the guidelines for contributing?
• Have you signed the CLA?
• Have you successfully run make lint?
• Have you successfully run pytest tests/unit?

---

craft-1734

[codecov-commenter]

Codecov Report

Merging #4152 (deee09e) into hotfix/7.3 (bef32e2) will increase coverage by 0.24%.
The diff coverage is 100.00%.

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@@              Coverage Diff               @@
##           hotfix/7.3    #4152      +/-   ##
==============================================
+ Coverage       94.56%   94.80%   +0.24%     
==============================================
  Files             652      648       -4     
  Lines           52524    54294    +1770     
==============================================
+ Hits            49668    51475    +1807     
+ Misses           2856     2819      -37     

Impacted Files	Coverage Δ
snapcraft/meta/snap_yaml.py	96.62% <100.00%> (+0.22%)	⬆️
tests/unit/meta/test_snap_yaml.py	100.00% <100.00%> (ø)

... and 68 files with indirect coverage changes

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