Upgrade opm version

Issue: PGO-429

Author: Anthony Landreth

installers/olm/Makefile

@@ -88,7 +88,7 @@ tools/$(SYSTEM)/operator-sdk:
 tools: tools/$(SYSTEM)/opm
 tools/$(SYSTEM)/opm:
 install -d '$(dir $@)'
-curl -fSL -o '$@' 'https://github.com/operator-framework/operator-registry/releases/download/v1.20.0/$(OS_KERNEL)-$(OS_MACHINE)-opm'
+curl -fSL -o '$@' 'https://github.com/operator-framework/operator-registry/releases/download/v1.33.0/$(OS_KERNEL)-$(OS_MACHINE)-opm'
 chmod u+x '$@'
 
 tools/$(SYSTEM)/venv: