Fix test case numbers.

test cases/failing/124 subproject sandbox violation/test.json

@@ -10,7 +10,7 @@
   },
   "stdout": [
     {
-      "line": "test cases/failing/123 subproject sandbox violation/meson.build:24:0: ERROR: Sandbox violation: Tried to grab file file.txt from a nested subproject."
+      "line": "test cases/failing/124 subproject sandbox violation/meson.build:24:0: ERROR: Sandbox violation: Tried to grab file file.txt from a nested subproject."
     }
   ]
 }

test cases/failing/125 override and add_project_dependency/test.json

@@ -1,7 +1,7 @@
 {
   "stdout": [
     {
-      "line": "test cases/failing/124 override and add_project_dependency/subprojects/a/meson.build:6:0: ERROR: Dependencies must be external dependencies"
+      "line": "test cases/failing/125 override and add_project_dependency/subprojects/a/meson.build:6:0: ERROR: Dependencies must be external dependencies"
     }
   ]
 }

test cases/failing/126 targets before add_project_dependency/test.json

@@ -1,7 +1,7 @@
 {
   "stdout": [
     {
-      "line": "test cases/failing/125 targets before add_project_dependency/meson.build:5:0: ERROR: Tried to use 'add_project_dependencies' after a build target has been declared."
+      "line": "test cases/failing/126 targets before add_project_dependency/meson.build:5:0: ERROR: Tried to use 'add_project_dependencies' after a build target has been declared."
     }
   ]
 }

test cases/failing/127 extract from unity/test.json

@@ -1,7 +1,7 @@
 {
   "stdout": [
     {
-      "line": "test cases/failing/126 extract from unity/meson.build:4:0: ERROR: Single object files can not be extracted in Unity builds. You can only extract all the object files for each compiler at once."
+      "line": "test cases/failing/127 extract from unity/meson.build:4:0: ERROR: Single object files can not be extracted in Unity builds. You can only extract all the object files for each compiler at once."
     }
   ]
 }

test cases/failing/128 subproject object as a dependency/test.json

@@ -1,7 +1,7 @@
 {
   "stdout": [
     {
-      "line": "test cases/failing/127 subproject object as a dependency/meson.build:3:0: ERROR: Tried to use subproject object as a dependency."
+      "line": "test cases/failing/128 subproject object as a dependency/meson.build:3:0: ERROR: Tried to use subproject object as a dependency."
     }
   ]
 }