refactor: replace inline pip install command with script in conda build process

Author: rbeucher

.conda/build_access_moppy.sh

@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+set -euxo pipefail
+
+$PYTHON -m pip install . -vv --no-deps

.conda/meta.yaml

@@ -22,7 +22,7 @@ outputs:
     - name: access-moppy
       build:
           noarch: python
-          script: "{{ PYTHON }} -m pip install . -vv --no-deps"
+      script: build_access_moppy.sh
       requirements:
           host:
               - python

.github/workflows/cd.yml

@@ -116,7 +116,7 @@ jobs:
               - name: access-moppy
                 build:
                     noarch: python
-                script: "$PYTHON -m pip install . -vv --no-deps"
+                script: build_access_moppy.sh
                 requirements:
                     host:
                         - python
@@ -171,6 +171,7 @@ jobs:
               recipe-maintainers:
                   - ACCESS-NRI
           EOF
+          chmod +x .conda-temp/build_access_moppy.sh
           echo "Created temporary conda recipe to use local source (path: ../)"
       - name: Setup conda environment
         uses: conda-incubator/setup-miniconda@v4