chore(ci): add ibis 7.x to CI matrix

Author: gforsyth

.github/workflows/ci.yml

@@ -93,12 +93,11 @@ jobs:
           - "3.11"
         ibis-version:
           - "4.1"
-          - "5.1"
-          - "6.0"
+          - "7.0"
         include:
          - os: windows-latest
            python-version: "3.11"
-           ibis-version: "6.0"
+           ibis-version: "7.0"
 
     steps:
       - uses: actions/checkout@v4
@@ -132,8 +131,7 @@ jobs:
           - "3.11"
         ibis-version:
           - "4.1"
-          - "5.1"
-          - "6.0"
+          - "7.0"
 
     steps:
       - uses: actions/checkout@v4