chore: Fix enterprise frontend build

Created by: efritz

Context: https://sourcegraph.slack.com/archives/CMBA8F926/p1602684842044900

https://buildkite.com/sourcegraph/sourcegraph/builds/76477 is failing because I started using the codeintel database package which imports sqlite utilities from the frontend, which was not being built with cgo enabled.

This enables the sqlite wrapper in the enterprise frontend container and fixes the build script. This is temporary, as we'll be removing all sqlite interaction in the precise code intel flow in the next milestone, so we can revert this once that's done.

Created by: mrnugget

The "chore: " in the title makes me think that you rolled your eyes, said "uuuuugh" and stomped one foot on the ground when opening the PR.

Created by: efritz

@mrnugget ugggh: Fix enterprise frontend build

Created by: codecov[bot]

Codecov Report

Merging #14721 into main will increase coverage by 0.00%. The diff coverage is n/a.

@@           Coverage Diff           @@
##             main   #14721   +/-   ##
=======================================
  Coverage   52.26%   52.26%           
=======================================
  Files        1552     1552           
  Lines       79265    79265           
  Branches     6957     7013   +56     
=======================================
+ Hits        41427    41428    +1     
- Misses      34089    34090    +1     
+ Partials     3749     3747    -2     

Flag	Coverage Δ
#go	52.56% <ø> (+<0.01%)
#integration	30.73% <ø> (ø)
#storybook	22.16% <ø> (ø)
#typescript	51.52% <ø> (ø)
#unit	33.35% <ø> (ø)

Impacted Files	Coverage Δ
cmd/frontend/graphqlbackend/zoekt.go	74.55% <0.00%> (-0.26%)
.../internal/codeintel/resolvers/graphql/locations.go	85.56% <0.00%> (+2.06%)