[GHA] Use GITHUB_ENV file for relevant variables

Signed-off-by: Stefan Marr <[email protected]>

Author: smarr

.github/workflows/ci.yml

@@ -62,6 +62,8 @@ jobs:
             build: |
               export PYTHON=python
               export SOM_INTERP=BC
+              echo "PYTHON=python" >> "$GITHUB_ENV"
+              echo "SOM_INTERP=BC" >> "$GITHUB_ENV"
             not-up-to-date: false
 
           - name: SOM (Java)
@@ -74,6 +76,7 @@ jobs:
             repo: TruffleSOM.git
             build: |
               export JAVA_HOME=$JAVA_HOME_17_X64
+              echo "JAVA_HOME=$JAVA_HOME_17_X64" >> "$GITHUB_ENV"
               ./som --setup mx
               export PATH=$PATH:`pwd`/../mx
               ./som --setup labsjdk
@@ -181,12 +184,10 @@ jobs:
             echo Build ${{ matrix.repo }}
             ${{ matrix.build }}
           fi
-          env
 
       - name: Run Tests on SOM VM
         if: ${{ matrix.som != 'spec' }}
         run: |
-          env
           cd som-vm
           if [ -z "${{ matrix.som-tests }}" ]
           then