Bump alpine from 3.15 to 3.19 (#78)

Bumps alpine from 3.15 to 3.19.

---
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

@@ -100,7 +100,7 @@ RUN adduser --disabled-password --gecos "" appuser
 USER appuser
 ENV PATH="/app/bin:$PATH"
 
-FROM alpine:3.15 AS ssl_runner
+FROM alpine:3.19 AS ssl_runner
 # Install SSL ca certificates
 RUN apk add --no-cache ca-certificates
 # Create user to be used in executable containers