docs: update deprecated server types (hetznercloud#577)

The CX Gen 2 and CPX Gen 1 types are deprecated and will be removed from
the API at the end of the year. This replaces all usages in our docs so
users do not have to figure it out themselves.

I kept the existing unit tests.

Author: apricote

README.md

@@ -39,7 +39,7 @@ client = Client(token="{YOUR_API_TOKEN}")  # Please paste your API token here
 # Create a server named my-server
 response = client.servers.create(
     name="my-server",
-    server_type=ServerType(name="cx22"),
+    server_type=ServerType(name="cx23"),
     image=Image(name="ubuntu-22.04"),
 )
 server = response.server

examples/create_server.py

@@ -15,7 +15,7 @@
 
 response = client.servers.create(
     name="my-server",
-    server_type=ServerType(name="cx22"),
+    server_type=ServerType(name="cx23"),
     image=Image(name="ubuntu-24.04"),
 )
 server = response.server

examples/get_server_metrics.py

@@ -18,7 +18,7 @@
 if server is None:
     response = client.servers.create(
         name="my-server",
-        server_type=ServerType(name="cx22"),
+        server_type=ServerType(name="cx23"),
         image=Image(name="ubuntu-24.04"),
     )
     server = response.server

examples/usage_oop.py

@@ -17,11 +17,11 @@
 # Create 2 servers
 # Create 2 servers
 response1 = client.servers.create(
-    "Server1", server_type=ServerType(name="cx22"), image=Image(id=4711)
+    "Server1", server_type=ServerType(name="cx23"), image=Image(id=4711)
 )
 
 response2 = client.servers.create(
-    "Server2", server_type=ServerType(name="cx22"), image=Image(id=4711)
+    "Server2", server_type=ServerType(name="cx23"), image=Image(id=4711)
 )
 # Get all servers
 server1 = response1.server

examples/usage_procedurale.py

@@ -17,11 +17,11 @@
 
 # Create 2 servers
 response1 = client.servers.create(
-    name="Server1", server_type=ServerType(name="cx22"), image=Image(id=4711)
+    name="Server1", server_type=ServerType(name="cx23"), image=Image(id=4711)
 )
 
 response2 = client.servers.create(
-    "Server2", server_type=ServerType(name="cx22"), image=Image(id=4711)
+    "Server2", server_type=ServerType(name="cx23"), image=Image(id=4711)
 )
 
 server1 = response1.server
@@ -64,7 +64,7 @@
 # Create one more server and attach 2 volumes to it
 client.servers.create(
     "Server3",
-    server_type=ServerType(name="cx22"),
+    server_type=ServerType(name="cx23"),
     image=Image(id=4711),
     volumes=[Volume(id=221), Volume(id=222)],
 )