Use poetry-plugin-export during workflows

.github/workflows/build_tests.yml

@@ -42,6 +42,7 @@ jobs:
               run: |
                   python -m pip install --upgrade pip
                   python -m pip install nox poetry
+                  poetry self add poetry-plugin-export
 
             - name: "Unit tests"
               run: nox -s build_tests_unit -x -- -vv
@@ -74,6 +75,7 @@ jobs:
               run: |
                   python -m pip install --upgrade pip
                   python -m pip install nox poetry
+                  poetry self add poetry-plugin-export
 
             - name: "Get public IP address of runner"
               # Need to handle this for Windows, MacOS, and linux
@@ -118,6 +120,7 @@ jobs:
               run: |
                   python -m pip install --upgrade pip
                   python -m pip install nox poetry
+                  poetry self add poetry-plugin-export
 
             - uses: conda-incubator/setup-miniconda@v3
               with:

.github/workflows/documentation.yml

@@ -20,6 +20,7 @@ jobs:
         run: |
           pip install --upgrade pip
           pip install poetry nox
+          poetry self add poetry-plugin-export
       - name: Sphinx build
         run: |
           nox -s docs

.github/workflows/source_tests.yml

@@ -43,6 +43,7 @@ jobs:
               run: |
                   python -m pip install --upgrade pip
                   python -m pip install nox poetry
+                  poetry self add poetry-plugin-export
 
             - name: "Get public IP address of runner"
               # Need to handle this for Windows, MacOS, and linux
@@ -94,6 +95,7 @@ jobs:
               run: |
                   python -m pip install --upgrade pip
                   python -m pip install nox poetry
+                  poetry self add poetry-plugin-export
 
             - name: "Get public IP address of runner"
               # Need to handle this for Windows, MacOS, and linux
@@ -155,6 +157,7 @@ jobs:
               run: |
                   python -m pip install --upgrade pip
                   python -m pip install nox poetry
+                  poetry self add poetry-plugin-export
 
             - name: "DRAGONS release tests"
               run: |