CI: add Godot 4.5.0-dev.2

Author: pkdawson

.github/workflows/gdext.yml

@@ -272,7 +272,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        gdver: ["4.2.2", "4.3.0", "4.4.0"]
+        gdver: ["4.2.2", "4.3.0", "4.4.0", "4.5.0-dev.2"]
         include:
           - os: ubuntu-latest
             name: 🐧GdsGameProject
@@ -353,7 +353,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        gdver: ["4.2.2", "4.3.0", "4.4.0"]
+        gdver: ["4.2.2", "4.3.0", "4.4.0", "4.5.0-dev.2"]
         include:
           - os: ubuntu-latest
             name: 🐧🧪GDScript
@@ -404,7 +404,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        gdver: ["4.2.2", "4.3.0", "4.4.0"]
+        gdver: ["4.2.2", "4.3.0", "4.4.0", "4.5.0-dev.2"]
         include:
           - os: ubuntu-latest
             name: 🐧🧪C#

.github/workflows/godot.yml

@@ -10,7 +10,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        gdver: ["4.2.2", "4.3.0", "4.4.0"]
+        gdver: ["4.2.2", "4.3.0", "4.4.0", "4.5.0-dev.2"]
         include:
           - os: ubuntu-latest
             name: 🐧🧪C# Only