Bump @backstage/theme from 0.4.4 to 0.6.8 in /incident

Bumps [@backstage/theme](https://github.com/backstage/backstage/tree/HEAD/packages/theme) from 0.4.4 to 0.6.8.
- [Release notes](https://github.com/backstage/backstage/releases)
- [Changelog](https://github.com/backstage/backstage/blob/master/packages/theme/CHANGELOG.md)
- [Commits](https://github.com/backstage/backstage/commits/HEAD/packages/theme)

---
updated-dependencies:
- dependency-name: "@backstage/theme"
  dependency-version: 0.6.8
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

incident/package.json

@@ -37,7 +37,7 @@
     "@backstage/plugin-catalog-react": "^1.8.5",
     "@backstage/plugin-home-react": "^0.1.4",
     "@backstage/plugin-search-react": "^1.7.1",
-    "@backstage/theme": "^0.4.3",
+    "@backstage/theme": "^0.7.0",
     "@material-ui/core": "^4.9.13",
     "@material-ui/icons": "^4.9.1",
     "@material-ui/lab": "^4.0.0-alpha.60",

incident/yarn.lock

@@ -3298,35 +3298,39 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@backstage/theme@npm:^0.4.3":
-  version: 0.4.4
-  resolution: "@backstage/theme@npm:0.4.4"
+"@backstage/theme@npm:^0.5.0, @backstage/theme@npm:^0.5.1":
+  version: 0.5.1
+  resolution: "@backstage/theme@npm:0.5.1"
   dependencies:
     "@emotion/react": "npm:^11.10.5"
     "@emotion/styled": "npm:^11.10.5"
     "@mui/material": "npm:^5.12.2"
   peerDependencies:
     "@material-ui/core": ^4.12.2
-    "@types/react": ^16.13.1 || ^17.0.0
+    "@types/react": ^16.13.1 || ^17.0.0 || ^18.0.0
     react: ^16.13.1 || ^17.0.0 || ^18.0.0
     react-dom: ^16.13.1 || ^17.0.0 || ^18.0.0
-  checksum: 10/11c1ce9620263ab2ca68c2b84dfb209efd503bfa17eebd3139eb97062d6646d7ef94b932000e6a1c3428c9ef240d505ee1e37602d5efe965036822efa814f84a
+  checksum: 10/a31c3cbfe1be478d89e118e9df8949e33468b73dee5f12d6e45288618ec31f07bc415474f8453ace1ef339b8a1a4dbf330b6be5ced489b3fea92f41b9222470e
   languageName: node
   linkType: hard
 
-"@backstage/theme@npm:^0.5.0, @backstage/theme@npm:^0.5.1":
-  version: 0.5.1
-  resolution: "@backstage/theme@npm:0.5.1"
+"@backstage/theme@npm:^0.7.0":
+  version: 0.7.0
+  resolution: "@backstage/theme@npm:0.7.0"
   dependencies:
     "@emotion/react": "npm:^11.10.5"
     "@emotion/styled": "npm:^11.10.5"
     "@mui/material": "npm:^5.12.2"
   peerDependencies:
     "@material-ui/core": ^4.12.2
-    "@types/react": ^16.13.1 || ^17.0.0 || ^18.0.0
-    react: ^16.13.1 || ^17.0.0 || ^18.0.0
-    react-dom: ^16.13.1 || ^17.0.0 || ^18.0.0
-  checksum: 10/a31c3cbfe1be478d89e118e9df8949e33468b73dee5f12d6e45288618ec31f07bc415474f8453ace1ef339b8a1a4dbf330b6be5ced489b3fea92f41b9222470e
+    "@types/react": ^17.0.0 || ^18.0.0
+    react: ^17.0.0 || ^18.0.0
+    react-dom: ^17.0.0 || ^18.0.0
+    react-router-dom: ^6.3.0
+  peerDependenciesMeta:
+    "@types/react":
+      optional: true
+  checksum: 10/33dd9df1dfbad2d480fb1dbaec8eb9076aa6e0037c39e0b4764768e25ba6beb4d02395471d217ad9151e6ceee5dcc158ab47a86822af61526d5d72cc8b44df0e
   languageName: node
   linkType: hard
 
@@ -4238,7 +4242,7 @@ __metadata:
     "@backstage/plugin-home-react": "npm:^0.1.4"
     "@backstage/plugin-search-react": "npm:^1.7.1"
     "@backstage/test-utils": "npm:^1.4.4"
-    "@backstage/theme": "npm:^0.4.3"
+    "@backstage/theme": "npm:^0.7.0"
     "@material-ui/core": "npm:^4.9.13"
     "@material-ui/icons": "npm:^4.9.1"
     "@material-ui/lab": "npm:^4.0.0-alpha.60"