Bump alpine from 3.19 to 3.20 (#118)

Bumps alpine from 3.19 to 3.20.

---
updated-dependencies:
- dependency-name: alpine
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

Dockerfile

@@ -13,7 +13,7 @@ COPY . .
 
 RUN cd cmd/vulnerability-db-api/ && GOOS=linux GOARCH=amd64 go build . && cd -
 
-FROM alpine:3.19
+FROM alpine:3.20
 
 RUN apk add --no-cache --update bash gettext