first working CI install

.github/workflows/tests.yml

@@ -140,13 +140,11 @@ jobs:
   ghidra-tests:
     name: Ghidra tests for ${{ matrix.python-version }}
     runs-on: ubuntu-20.04
-    needs: [code_style, rule_linter]
     strategy:
       fail-fast: false
       matrix:
         python-version: ["3.7", "3.11"]
         java-version: ["17"]
-        gradle-version: ["7.3"]
     steps:
     - name: Checkout capa with submodules
       uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c # v3.3.0
@@ -161,19 +159,16 @@ jobs:
       with:
         distribution: 'temurin'
         java-version: ${{ matrix.java-version }}
-    - name: Set up Gradle ${{ matrix.gradle-version }}
-      uses: actions/gradle/gradle-build-action@v2
-      with:
-        gradle-version: ${{ matrix.gradle-version }}
+    - name: Set up Gradle 7.3 # must be done manually due to no gradle build in capa
+      run: |
+        mkdir /opt/gradle
+        wget "https://services.gradle.org/distributions/gradle-7.3-bin.zip" -O /opt/gradle/gradle-7.3.zip
+        unzip /opt/gradle/gradle-7.3.zip -d /opt/gradle
     - name: Install Ghidra 10.3
       run: |
         mkdir ./.github/ghidra
         wget "https://github.com/NationalSecurityAgency/ghidra/releases/download/Ghidra_10.3_build/ghidra_10.3_PUBLIC_20230510.zip" -O ./.github/ghidra/ghidra_10.3_PUBLIC.zip
         unzip .github/ghidra/ghidra_10.3_PUBLIC.zip -d .github/ghidra/
-        export PATH="/.github/ghidra/ghidra_10.3_PUBLIC/Support:$PATH"
-      env:
-        GHIDRA_INSTALL_DIR: /github/ghidra/ghidra_10.3_PUBLIC
-        GHIDRA_EXT_DIR: /github/ghidra/ghidra_10.3_PUBLIC/Extensions
     - name: Install Jep 4.1.1
       run : |
         mkdir ./.github/jep
@@ -185,7 +180,9 @@ jobs:
         mkdir ./.github/ghidrathon
         wget "https://github.com/mandiant/Ghidrathon/archive/refs/tags/v2.1.0.zip" -O ./.github/ghidrathon/ghidrathon-2.1.0.zip
         unzip .github/ghidrathon/ghidrathon-2.1.0.zip -d .github/ghidrathon/
-        gradle -p ./.github/ghidrathon/Ghidrathon-2.1.0/
+        workdir=$(pwd)
+        /opt/gradle/gradle-7.3/bin/gradle -p ./.github/ghidrathon/Ghidrathon-2.1.0/ -PGHIDRA_INSTALL_DIR=$workdir/.github/ghidra/ghidra_10.3_PUBLIC 
+        unzip .github/ghidrathon/Ghidrathon-2.1.0/dist/*.zip -d $workdir/.github/ghidra/ghidra_10.3_PUBLIC/Extensions
     - name: Install pyyaml
       run: sudo apt-get install -y libyaml-dev
     - name: Install capa