[tests] Fix SNTP time ID conflicts in component tests for grouped testing (#11990)

tests/components/lvgl/common.yaml

@@ -115,8 +115,8 @@ wifi:
   password: PASSWORD123
 
 time:
-  platform: sntp
+  - platform: sntp
-  id: time_id
+    id: sntp_time
 
 text:
   - id: lvgl_text

tests/components/lvgl/lvgl-package.yaml

@@ -478,19 +478,19 @@ lvgl:
                   id: hello_label
                   text:
                     time_format: "%c"
-                    time: time_id
+                    time: sntp_time
               - lvgl.label.update:
                   id: hello_label
                   text:
                     time_format: "%c"
-                    time: !lambda return id(time_id).now();
+                    time: !lambda return id(sntp_time).now();
               - lvgl.label.update:
                   id: hello_label
                   text:
                     time_format: "%c"
                     time: !lambda |-
                         ESP_LOGD("label", "multi-line lambda");
-                        return id(time_id).now();
+                        return id(sntp_time).now();
             on_value:
               logger.log:
                 format: "state now %d"

tests/components/mqtt/common.yaml

@@ -4,6 +4,7 @@ wifi:
 
 time:
   - platform: sntp
+    id: sntp_time
 
 mqtt:
   broker: "192.168.178.84"

tests/components/uptime/common.yaml

@@ -3,6 +3,7 @@ wifi:
 
 time:
   - platform: sntp
+    id: sntp_time
 
 sensor:
   - platform: uptime

tests/components/wireguard/common.yaml

@@ -4,8 +4,10 @@ wifi:
 
 time:
   - platform: sntp
+    id: sntp_time
 
 wireguard:
+  time_id: sntp_time
   address: 172.16.34.100
   netmask: 255.255.255.0
   # NEVER use the following keys for your VPN -- they are now public!