CI: Use tombi-toml/setup-tombi with a PATH fix

Current version of `tombi-toml/setup-tombi` has a bug, as it does not
setup the `$PATH` variable correctly.  Before a fix is accepted with
could use a fork with the fix.

Author: ilya-bobyr

.github/actions/setup/action.yml

@@ -100,7 +100,11 @@ runs:
 
     - name: Install tombi
       if: ${{ inputs.tombi == 'true' }}
-      uses: tombi-toml/setup-tombi@v1
+      # TODO When https://github.com/tombi-toml/setup-tombi/pull/3 is accepted,
+      # we can switch to the official tombi setup action:
+      #
+      # uses: tombi-toml/setup-tombi@v1
+      uses: ilya-bobyr/setup-tombi@12ecd5bfd7370b35b2d6494a6fe7e91ad76c8beb
 
     - name: Install Solana
       if: ${{ inputs.solana == 'true' }}