Add support for Heroku-22 (#161)

Binary generated using `make build-heroku-22`.

GUS-W-10346720.

Changelog.md

@@ -1,9 +1,11 @@
 ## Unreleased
+* Add support for Heroku-22
 * Add codeowners
 
 ## v0.9.0 (June 4, 2021)
 * remove heroku-16
 * revert back to pgbouncer 1.14
+
 ## v0.8.0 (May 31, 2021)
 * pgbouncer 1.15
 * streamline bin/compile

Makefile

@@ -1,4 +1,4 @@
-build: build-heroku-18 build-heroku-20
+build: build-heroku-18 build-heroku-20 build-heroku-22
 
 build-heroku-18:
 	@echo "Building pgbouncer in Docker for heroku-18..."
@@ -8,6 +8,10 @@ build-heroku-20:
 	@echo "Building pgbouncer in Docker for heroku-20..."
 	@docker run -v $(shell pwd):/buildpack --rm -it -e "STACK=heroku-20" -w /buildpack heroku/heroku:20-build support/pgbouncer-build
 
+build-heroku-22:
+	@echo "Building pgbouncer in Docker for heroku-22..."
+	@docker run -v $(shell pwd):/buildpack --rm -it -e "STACK=heroku-22" -w /buildpack heroku/heroku:22-build support/pgbouncer-build
+
 shell:
-	@echo "Opening heroku-18 shell..."
-	@docker run -v $(shell pwd):/buildpack --rm -it -e "STACK=heroku-18" -e "PORT=5000" -w /buildpack heroku/heroku:18-build bash
+	@echo "Opening heroku-22 shell..."
+	@docker run -v $(shell pwd):/buildpack --rm -it -e "STACK=heroku-22" -e "PORT=5000" -w /buildpack heroku/heroku:22-build bash