Bump elixir from 1.14-alpine to 1.17-alpine

Bumps elixir from 1.14-alpine to 1.17-alpine.

---
updated-dependencies:
- dependency-name: elixir
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

server.dockerfile

@@ -1,4 +1,4 @@
-FROM elixir:1.14-alpine AS builder
+FROM elixir:1.17-alpine AS builder
 
 # install build dependencies
 RUN apk add --no-cache npm