Complement environment variable name change and update .gitignore. (#11718)

.gitignore

@@ -50,3 +50,7 @@ __pycache__/
 
 # docs
 book/
+
+# complement
+/complement-master
+/master.tar.gz

changelog.d/11718.misc

@@ -0,0 +1 @@
+Complement environment variable name change and update `.gitignore`.

scripts-dev/complement.sh

@@ -47,7 +47,7 @@ if [[ -n "$WORKERS" ]]; then
   COMPLEMENT_DOCKERFILE=SynapseWorkers.Dockerfile
   # And provide some more configuration to complement.
   export COMPLEMENT_CA=true
-  export COMPLEMENT_VERSION_CHECK_ITERATIONS=500
+  export COMPLEMENT_SPAWN_HS_TIMEOUT_SECS=25
 else
   export COMPLEMENT_BASE_IMAGE=complement-synapse
   COMPLEMENT_DOCKERFILE=Synapse.Dockerfile