chore(deps): update cft/developer-tools docker tag to v1.18 (#179)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

Makefile

@@ -18,7 +18,7 @@
 # Make will use bash instead of sh
 SHELL := /usr/bin/env bash -O extglob
 
-DOCKER_TAG_VERSION_DEVELOPER_TOOLS := 1.17
+DOCKER_TAG_VERSION_DEVELOPER_TOOLS := 1.18
 DOCKER_IMAGE_DEVELOPER_TOOLS := cft/developer-tools
 REGISTRY_URL := gcr.io/cloud-foundation-cicd
 

build/int.cloudbuild.yaml

@@ -58,4 +58,4 @@ tags:
 - 'integration'
 substitutions:
   _DOCKER_IMAGE_DEVELOPER_TOOLS: 'cft/developer-tools'
-  _DOCKER_TAG_VERSION_DEVELOPER_TOOLS: '1.17'
+  _DOCKER_TAG_VERSION_DEVELOPER_TOOLS: '1.18'

build/lint.cloudbuild.yaml

@@ -23,4 +23,4 @@ tags:
 - 'lint'
 substitutions:
   _DOCKER_IMAGE_DEVELOPER_TOOLS: 'cft/developer-tools'
-  _DOCKER_TAG_VERSION_DEVELOPER_TOOLS: '1.17'
+  _DOCKER_TAG_VERSION_DEVELOPER_TOOLS: '1.18'