Stop adding uuid= in keyfiles

Rocky Linux 10 is complaining on empty uuid, according to [1]
NM will generate uuid based on file hash if there's no uuid.

[1]: https://networkmanager.dev/docs/api/latest/nm-settings-keyfile.html

Change-Id: I4de7a98796d83cb0454d2c5faf4e293d9cc98290

glean/cmd.py

@@ -131,7 +131,6 @@ def _network_config(args):
         # Automatically generated, do not edit
         [connection]
         id={id}
-        uuid=
         type=802-3-ethernet
 
         [ipv4]

glean/tests/fixtures/test/hp.redhat-10.network.out

@@ -2,7 +2,6 @@
 # Automatically generated, do not edit
 [connection]
 id=eth0
-uuid=
 type=802-3-ethernet
 
 [ipv4]
@@ -14,7 +13,6 @@ mac_address=bc:76:4e:01:62:86
 # Automatically generated, do not edit
 [connection]
 id=eth1
-uuid=
 type=802-3-ethernet
 
 [ipv4]
@@ -26,7 +24,6 @@ mac_address=bc:76:4e:05:7b:06
 # Automatically generated, do not edit
 [connection]
 id=eth3
-uuid=
 type=802-3-ethernet
 
 [ipv4]

glean/tests/fixtures/test/liberty.redhat-10.network.out

@@ -5,7 +5,6 @@ nameserver 72.3.128.240
 # Automatically generated, do not edit
 [connection]
 id=eth0
-uuid=
 type=802-3-ethernet
 
 [ipv4]
@@ -19,7 +18,6 @@ mac_address=bc:76:4e:01:62:86
 # Automatically generated, do not edit
 [connection]
 id=eth1
-uuid=
 type=802-3-ethernet
 
 [ipv4]
@@ -34,7 +32,6 @@ mac_address=bc:76:4e:05:7b:06
 # Automatically generated, do not edit
 [connection]
 id=eth3
-uuid=
 type=802-3-ethernet
 
 [ipv4]
@@ -46,7 +43,6 @@ mac_address=bc:76:4e:12:a4:bb
 # Automatically generated, do not edit
 [connection]
 id=eth4.25
-uuid=
 type=802-3-ethernet
 
 [ipv4]
@@ -62,7 +58,6 @@ parent=ethwithvlan
 # Automatically generated, do not edit
 [connection]
 id=eth4.26
-uuid=
 type=802-3-ethernet
 
 [ipv4]
@@ -78,7 +73,6 @@ parent=ethwithvlan
 # Automatically generated, do not edit
 [connection]
 id=eth5
-uuid=
 type=802-3-ethernet
 
 [ipv4]
@@ -92,7 +86,6 @@ slave-type=bond
 # Automatically generated, do not edit
 [connection]
 id=eth6
-uuid=
 type=802-3-ethernet
 
 [ipv4]
@@ -106,7 +99,6 @@ slave-type=bond
 # Automatically generated, do not edit
 [connection]
 id=bond0
-uuid=
 type=802-3-ethernet
 
 [ipv4]
@@ -119,7 +111,6 @@ type=bond
 # Automatically generated, do not edit
 [connection]
 id=eth7
-uuid=
 type=802-3-ethernet
 
 [ipv4]
@@ -133,7 +124,6 @@ slave-type=bond
 # Automatically generated, do not edit
 [connection]
 id=eth8
-uuid=
 type=802-3-ethernet
 
 [ipv4]
@@ -147,7 +137,6 @@ slave-type=bond
 # Automatically generated, do not edit
 [connection]
 id=bond1
-uuid=
 type=802-3-ethernet
 
 [ipv4]
@@ -160,7 +149,6 @@ type=bond
 # Automatically generated, do not edit
 [connection]
 id=bond1.27
-uuid=
 type=802-3-ethernet
 
 [ipv4]

glean/tests/fixtures/test/nokey.redhat-10.network.out

@@ -2,7 +2,6 @@
 # Automatically generated, do not edit
 [connection]
 id=eth0
-uuid=
 type=802-3-ethernet
 
 [ipv4]
@@ -14,7 +13,6 @@ mac_address=bc:76:4e:01:62:86
 # Automatically generated, do not edit
 [connection]
 id=eth1
-uuid=
 type=802-3-ethernet
 
 [ipv4]
@@ -26,7 +24,6 @@ mac_address=bc:76:4e:05:7b:06
 # Automatically generated, do not edit
 [connection]
 id=eth3
-uuid=
 type=802-3-ethernet
 
 [ipv4]

glean/tests/fixtures/test/rax-iad.redhat-10.network.out

@@ -5,7 +5,6 @@ nameserver 69.20.0.164
 # Automatically generated, do not edit
 [connection]
 id=eth0
-uuid=
 type=802-3-ethernet
 
 [ipv4]
@@ -25,7 +24,6 @@ route2=fd30::/48,fe80::f001
 # Automatically generated, do not edit
 [connection]
 id=eth1
-uuid=
 type=802-3-ethernet
 
 [ipv4]

glean/tests/fixtures/test/rax.redhat-10.network.out

@@ -5,7 +5,6 @@ nameserver 72.3.128.240
 # Automatically generated, do not edit
 [connection]
 id=eth0
-uuid=
 type=802-3-ethernet
 
 [ipv4]
@@ -19,7 +18,6 @@ mac_address=bc:76:4e:01:62:86
 # Automatically generated, do not edit
 [connection]
 id=eth1
-uuid=
 type=802-3-ethernet
 
 [ipv4]
@@ -34,7 +32,6 @@ mac_address=bc:76:4e:05:7b:06
 # Automatically generated, do not edit
 [connection]
 id=eth3
-uuid=
 type=802-3-ethernet
 
 [ipv4]

glean/tests/fixtures/test/vexxhost.redhat-10.network.out

@@ -5,7 +5,6 @@ nameserver 199.204.47.54
 # Automatically generated, do not edit
 [connection]
 id=ens3
-uuid=
 type=802-3-ethernet
 
 [ipv4]