Update dependency com.github.bitfireAT:dav4jvm to v2.2.1

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

app/build.gradle.kts

@@ -211,7 +211,7 @@ dependencies {
     implementation("androidx.work:work-rxjava2:$workVersion")
     implementation("androidx.swiperefreshlayout:swiperefreshlayout:1.2.0")
     implementation("com.google.android.flexbox:flexbox:3.0.0")
-    implementation("com.github.bitfireAT:dav4jvm:2.1.3") {
+    implementation("com.github.bitfireAT:dav4jvm:2.2.1") {
         exclude(group = "org.ogce", module = "xpp3") // Android comes with its own XmlPullParser
     }
     implementation("org.conscrypt:conscrypt-android:2.5.3")

gradle/verification-metadata.xml

@@ -9573,10 +9573,10 @@
       </component>
       <component group="androidx.sharetarget" name="sharetarget" version="1.2.0">
          <artifact name="sharetarget-1.2.0.aar">
-            <sha256 value="1d4e46d2c99b3ddf92163673cac212a4f0342ccf6827ff47606048b348ea78e3" origin="Generated by Gradle"/>
+            <sha256 value="1d4e46d2c99b3ddf92163673cac212a4f0342ccf6827ff47606048b348ea78e3" origin="Generated by Gradle" reason="Artifact is not signed"/>
          </artifact>
          <artifact name="sharetarget-1.2.0.module">
-            <sha256 value="5a35f1e23888d0eee77bfe481b000710aaac14edf123a8485edbd8fbcd18e059" origin="Generated by Gradle"/>
+            <sha256 value="5a35f1e23888d0eee77bfe481b000710aaac14edf123a8485edbd8fbcd18e059" origin="Generated by Gradle" reason="Artifact is not signed"/>
          </artifact>
       </component>
       <component group="androidx.slidingpanelayout" name="slidingpanelayout" version="1.0.0">