[Build] Fetch binaries in workflow for automated version increments

Follow-up to
- #678

.github/workflows/pr-checks.yml

@@ -19,4 +19,5 @@ jobs:
     with:
       botName: Eclipse Equinox Bot
       botMail: [email protected]
-      extra-maven-args: '-f bundles'
+      extra-setup-command: 'git clone --depth 1 https://github.com/eclipse-equinox/equinox.binaries.git binaries'
+      extra-maven-args: '-Dequinox.binaries.loc=$(pwd)/binaries'

.gitignore

@@ -3,10 +3,13 @@ bin_test
 /bundles/archived/*/bin/
 .DS_Store
 
+# Ignore clone of equinox.binaries repo created in version-check/increment workflow
+/binaries/
+
 # maven
 target/
 # files generated (temporary) by the tycho maven builds
 .polyglot.*
 .META-INF_*
 pom.tycho
-.tycho-consumer-pom.xml
+.tycho-consumer-pom.xml