Bump ssciwr/doxygen-install from 1 to 2

Bumps [ssciwr/doxygen-install](https://github.com/ssciwr/doxygen-install) from 1 to 2.
- [Release notes](https://github.com/ssciwr/doxygen-install/releases)
- [Commits](ssciwr/doxygen-install@v1...v2)

---
updated-dependencies:
- dependency-name: ssciwr/doxygen-install
  dependency-version: '2'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -25,7 +25,7 @@ jobs:
 
 
     - name: Install Doxygen
-      uses: ssciwr/doxygen-install@v1
+      uses: ssciwr/doxygen-install@v2
 
     - name: Make build directory
       run: cmake -E make_directory ${{ github.workspace }}/build
@@ -59,7 +59,7 @@ jobs:
         sudo apt-get install -y lcov
 
     - name: Install Doxygen
-      uses: ssciwr/doxygen-install@v1
+      uses: ssciwr/doxygen-install@v2
 
 
     - name: Create cmake build directory