[MM-44056] Make Calls plugin's state on Cloud controllable by feature flag (#20161)

* Make Calls plugin's state on Cloud controllable by feature flag

* Prepackage Calls v0.4.9 (#20148)

* Update app/plugin.go

Co-authored-by: Jesse Hallam <jesse.hallam@gmail.com>

* Update app/plugin_install.go

Co-authored-by: Jesse Hallam <jesse.hallam@gmail.com>

* Bump Calls version to latest

Co-authored-by: Jesse Hallam <jesse.hallam@gmail.com>
Co-authored-by: Mattermod <mattermod@users.noreply.github.com>

build/release.mk

@@ -170,6 +170,11 @@ else
 	@# Prepackage plugins
 	@for plugin_package in $(PLUGIN_PACKAGES) ; do \
 		ARCH=$(PLUGIN_ARCH); \
+		if [ "$$ARCH" != "linux-amd64" ]; then \
+			case $$plugin_package in \
+				"mattermost-plugin-calls"*) continue ;; \
+			esac; \
+		fi; \
 		cp tmpprepackaged/$$plugin_package-$$ARCH.tar.gz $(DIST_PATH_GENERIC)/prepackaged_plugins; \
 		cp tmpprepackaged/$$plugin_package-$$ARCH.tar.gz.sig $(DIST_PATH_GENERIC)/prepackaged_plugins; \
 		HAS_ARCH=`tar -tf $(DIST_PATH_GENERIC)/prepackaged_plugins/$$plugin_package-$$ARCH.tar.gz | grep -oE "dist/plugin-.*"`; \
@@ -234,6 +239,9 @@ endif
 	@# Prepackage plugins
 	@for plugin_package in $(PLUGIN_PACKAGES) ; do \
 		ARCH="windows-amd64"; \
+		case $$plugin_package in \
+			"mattermost-plugin-calls"*) continue ;; \
+		esac; \
 		cp tmpprepackaged/$$plugin_package-$$ARCH.tar.gz $(DIST_PATH_WIN)/prepackaged_plugins; \
 		cp tmpprepackaged/$$plugin_package-$$ARCH.tar.gz.sig $(DIST_PATH_WIN)/prepackaged_plugins; \
 		HAS_ARCH=`tar -tf $(DIST_PATH_WIN)/prepackaged_plugins/$$plugin_package-$$ARCH.tar.gz | grep -oE "dist/plugin-.*"`; \