ENS: Ensure 10%+ gas minimum

[mbeacom]

Description

The goal of this PR is to resolve: #1302 (https://rollbar.com/gitcoin/gitcoin/items/1176/)
Explanation of fix

Checklist

• linter status: 100% pass
• changes don't break existing behavior
• commit message follows commit guidelines

Affected core subsystem(s)

ens

Refers/Fixes

Fix #1302

[codecov]

Codecov Report

Merging #1303 into master will increase coverage by 0.96%.
The diff coverage is 40%.

@@            Coverage Diff             @@
##           master    #1303      +/-   ##
==========================================
+ Coverage   31.29%   32.26%   +0.96%     
==========================================
  Files         122      123       +1     
  Lines        8521     9132     +611     
  Branches     1116     1287     +171     
==========================================
+ Hits         2667     2946     +279     
- Misses       5743     6065     +322     
- Partials      111      121      +10

Impacted Files	Coverage Δ
.../enssubdomain/management/commands/reprocess_txs.py	0% <ø> (ø)	⬆️
...management/commands/warn_when_wallet_out_of_eth.py	0% <ø> (ø)	⬆️
app/enssubdomain/admin.py	100% <100%> (ø)	⬆️
app/enssubdomain/utils.py	100% <100%> (ø)
app/enssubdomain/views.py	23.4% <28%> (+0.09%)	⬆️
app/enssubdomain/models.py	58.82% <40%> (ø)	⬆️
app/app/urls.py	90.24% <0%> (-4.05%)	⬇️
app/dashboard/router.py	34.65% <0%> (-2.43%)	⬇️
app/dashboard/models.py	59.27% <0%> (-0.52%)	⬇️
app/app/settings.py	85.22% <0%> (-0.09%)	⬇️
... and 9 more

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[owocki]

should we not log the exception too?