Upgrade huawei-lte-api to 1.6.7, fixes empty username issues (#81751)

Recentish versions of huawei-lte-api behave differently with regards to
empty/default username compared to the older versions this integration
was originally written against. 1.6.5+ changes the behavior so that our
existing implementation works as expected when no username is supplied
for the config entry.

https://github.com/Salamek/huawei-lte-api/releases/tag/1.6.4
https://github.com/Salamek/huawei-lte-api/releases/tag/1.6.5
https://github.com/Salamek/huawei-lte-api/releases/tag/1.6.6
https://github.com/Salamek/huawei-lte-api/releases/tag/1.6.7

homeassistant/components/huawei_lte/manifest.json

@@ -4,7 +4,7 @@
   "config_flow": true,
   "documentation": "https://www.home-assistant.io/integrations/huawei_lte",
   "requirements": [
-    "huawei-lte-api==1.6.3",
+    "huawei-lte-api==1.6.7",
     "stringcase==1.2.0",
     "url-normalize==1.4.3"
   ],

requirements_all.txt

@@ -902,7 +902,7 @@ horimote==0.4.1
 httplib2==0.20.4
 
 # homeassistant.components.huawei_lte
-huawei-lte-api==1.6.3
+huawei-lte-api==1.6.7
 
 # homeassistant.components.hydrawise
 hydrawiser==0.2

requirements_test_all.txt

@@ -679,7 +679,7 @@ homepluscontrol==0.0.5
 httplib2==0.20.4
 
 # homeassistant.components.huawei_lte
-huawei-lte-api==1.6.3
+huawei-lte-api==1.6.7
 
 # homeassistant.components.hyperion
 hyperion-py==0.7.5