aqua up fails if version_expr is used

[suzuki-shunsuke]

aqua info

$ aqua -v
aqua version 2.42.1 (bb1bc5db0833cd260a28c9a052a8bf4c1ea25b90)

Overview

aqua up fails if version_expr is used.

How to reproduce

aqua.yaml

registries:
  - type: standard
    ref: v4.176.0 # renovate: depName=aquaproj/aqua-registry
packages:
  - name: hashicorp/terraform
    version_expr: readFile(".terraform-version")
    version_expr_prefix: v

Executed command and output

$ aqua up 
ERRO[0000] ignore a package because the package version is empty  aqua_version=2.42.1 env=darwin/arm64 program=aqua
FATA[0000] aqua failed                                   aqua_version=2.42.1 env=darwin/arm64 error="list packages" program=aqua

Expected behaviour

aqua up ignores packages which use version_expr`.

Actual behaviour

aqua up fails.

Note

go_version_file causes the same issue.

registries:
  - type: standard
    ref: v4.176.0 # renovate: depName=aquaproj/aqua-registry
packages:
  - name: golang/go
    go_version_file: go.mod

$ aqua up
ERRO[0000] ignore a package because the package version is empty  aqua_version=2.42.1 env=darwin/arm64 program=aqua
FATA[0000] aqua failed                                   aqua_version=2.42.1 env=darwin/arm64 error="list packages" program=aqua