fix(modules.sls): fix `salt-lint` errors

```bash
Examining apache/modules.sls of type state
[201] Trailing whitespace
apache/modules.sls:49

[201] Trailing whitespace
apache/modules.sls:84
```

apache/modules.sls

@@ -46,7 +46,7 @@ a2dismod -f {{ module }}:
 
 include:
   - apache
- 
+
 {% for module in salt['pillar.get']('apache:modules:enabled', []) %}
 find /etc/httpd/ -name '*.conf' -type f -exec sed -i -e 's/\(^#\)\(\s*LoadModule.{{ module }}_module\)/\2/g' {} \;:
   cmd.run:
@@ -81,7 +81,7 @@ find /etc/httpd/ -name '*.conf' -type f -exec sed -i -e 's/\(^\s*LoadModule.{{ m
 
 include:
   - apache
- 
+
 {% for module in salt['pillar.get']('apache:modules:enabled', []) %}
 a2enmod {{ module }}:
   cmd.run: