Pip install sarif and toml extras (#17)

The bandit-action should install all extras for best compatiblity
for users of the action. This change adds the toml extra. The
only other extra missing is baseline, but that isn't exploited
as part of the action yet.

Fixes #15

Signed-off-by: Eric Brown <eric_wade_brown@yahoo.com>

Author: ericwb

action.yml

@@ -77,7 +77,7 @@ runs:
 
     - name: Install Bandit
       shell: bash
-      run: pip install bandit[sarif]
+      run: pip install bandit[sarif,toml]
 
     - name: Checkout repository
       uses: actions/checkout@v4