internal/worker: fetch vuln db modified times after reading entries

vulndb table sits in the vulndb dataset. Worker server does not create
tables, if needed, for that dataset upon startup. If the table does not
exist and we try to read last modified entries, we'll hit an error.

Change-Id: Ic1f9fb40e8645c1738f6ca7056c431f19412dde5
Reviewed-on: https://go-review.googlesource.com/c/pkgsite-metrics/+/489855
Run-TryBot: Zvonimir Pavlinovic <zpavlinovic@google.com>
Reviewed-by: Julie Qiu <julieqiu@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2 files changed
tree: 6c35d5ec57c7b0367b6c87a06fac788a91f22c7a
  1. cmd/
  2. deploy/
  3. devtools/
  4. internal/
  5. terraform/
  6. .dockerignore
  7. .gitignore
  8. all_test.go
  9. checks.bash
  10. config.json.commented
  11. CONTRIBUTING.md
  12. go.mod
  13. go.sum
  14. LICENSE
  15. Makefile
  16. PATENTS
  17. README.md
  18. tools.go
README.md

pkgsite-metrics

This repository contains code that serves pkg.go.dev/metrics.

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