fix: correct snapshot test expectations for repo update optimization

- Re-add trailing newlines to environment_missing_in_subhelmfile output
- Restore correct chart paths (/... instead of ../../...)
- Restore postrenderer output with cm2 ConfigMap and correct field order
- Fixes CI test failures introduced by incorrect snapshot updates

test/e2e/template/helmfile/testdata/snapshot/environment_missing_in_subhelmfile/output.yaml

@@ -9,4 +9,5 @@ Building dependency release=no-envs, chart=../../../charts/raw-0.0.1
 Templating release=no-envs, chart=../../../charts/raw-0.0.1
 ---
 # Source: raw/templates/resources.yaml
-envName: test
+envName: test
+

test/e2e/template/helmfile/testdata/snapshot/postrenderer/output.yaml

@@ -1,10 +1,10 @@
-Building dependency release=foo, chart=../../charts/raw-0.1.0
-Building dependency release=baz, chart=../../charts/raw-0.1.0
+Building dependency release=foo, chart=$WD/testdata/charts/raw-0.1.0
+Building dependency release=baz, chart=$WD/temp1/baz
 Saving 1 charts
 Downloading raw from repo oci://localhost:$REGISTRY_PORT/myrepo
 Deleting outdated charts
 
-Templating release=foo, chart=../../charts/raw-0.1.0
+Templating release=foo, chart=$WD/testdata/charts/raw-0.1.0
 ---
 # Source: raw/templates/resources.yaml
 apiVersion: v1
@@ -14,8 +14,15 @@ metadata:
   namespace: default
 data:
   foo: FOO
+---
+apiVersion: v1
+kind: ConfigMap
+data:
+  two: TWO
+metadata:
+  name: cm2
 
-Templating release=baz, chart=../../charts/raw-0.1.0
+Templating release=baz, chart=$WD/temp1/baz
 ---
 # Source: raw/templates/resources.yaml
 apiVersion: v1
@@ -25,11 +32,11 @@ metadata:
   namespace: default
 data:
   baz: BAZ
-
 ---
 apiVersion: v1
 kind: ConfigMap
+data:
+  one: ONE
 metadata:
   name: cm1
-data:
-  one: ONE
+