Update pgbouncer to v1.17.0 for Heroku-18 and Heroku-20 (#170)

For parity with Heroku-22 (thereby reducing differences between stacks, so
there is one fewer thing to think about when upgrading stacks), now that the
cause of #150 is understood and fixed.

https://www.pgbouncer.org/changelog.html#pgbouncer-117x

Binaries generated using `make build-heroku-18 build-heroku-20`.

Changelog.md

@@ -1,5 +1,8 @@
 ## Unreleased
 
+## v0.13.0 (September 9, 2022)
+* Update pgbouncer to v1.17.0 for Heroku-18 and Heroku-20 (for parity with Heroku-22)
+
 ## v0.12.0 (September 6, 2022)
 * Add missing `SIGTERM` patch for v1.17.0 (corrects shutdown behaviour on Heroku-22)
 

Makefile

@@ -10,7 +10,7 @@ build-heroku-20:
 
 build-heroku-22:
 	@echo "Building pgbouncer in Docker for heroku-22..."
-	@docker run -v $(shell pwd):/buildpack --rm -it -e "STACK=heroku-22" -e "PGBOUNCER_VERSION=1.17.0" -w /buildpack heroku/heroku:22-build support/pgbouncer-build
+	@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-22 shell..."

README.md

@@ -92,8 +92,8 @@ that process.
 
 ## PgBouncer Version
 
-- Heroku-18: `v1.14.0`
-- Heroku-20: `v1.14.0`
+- Heroku-18: `v1.17.0`
+- Heroku-20: `v1.17.0`
 - Heroku-22: `v1.17.0`
 
 ## Multiple Databases

support/pgbouncer-build

@@ -2,7 +2,7 @@
 
 set -euo pipefail
 
-PGBOUNCER_VERSION=${PGBOUNCER_VERSION-1.14.0}
+PGBOUNCER_VERSION=${PGBOUNCER_VERSION-1.17.0}
 
 pgbouncer_tarball_url=https://www.pgbouncer.org/downloads/files/${PGBOUNCER_VERSION}/pgbouncer-${PGBOUNCER_VERSION}.tar.gz