fix(deps): update dependency org.mnode.ical4j:ical4j to v4

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

Author: renovate[bot]

gradle/libs.versions.toml

@@ -41,7 +41,7 @@ flexboxVersion = "3.0.0"
 fragmentKtxVersion = "1.8.9"
 glide = "5.0.5"
 gsonVersion = "2.13.2"
-ical4jVersion = "3.2.19"
+ical4jVersion = "4.2.3"
 jackrabbitWebdavVersion = "2.13.5"
 jacoco = "0.8.14"
 jsonVersion = "20250517"

gradle/verification-metadata.xml

@@ -175,6 +175,7 @@
             <trusting group="com.mebigfatguy.fb-contrib" name="fb-contrib" version="7.7.2"/>
          </trusted-key>
          <trusted-key id="41CD49B4EF5876F9E9F691DABAC30622339994C4" group="org.jspecify" name="jspecify" version="1.0.0"/>
+         <trusted-key id="44C9BD32E7CB72F36F49DD0716968D251E760606" group="org.mnode.ical4j" name="ical4j" version="4.2.3"/>
          <trusted-key id="44F4797A52C336FA666CD9271DE461528F1F1B2A" group="org.apache.jackrabbit"/>
          <trusted-key id="44FBDBBC1A00FE414F1C1873586654072EAD6677" group="org.sonatype.oss" name="oss-parent" version="9"/>
          <trusted-key id="453EA31328DE7D8AAA55AD4ED56C721C1CFF1424" group="^com[.]twelvemonkeys($|([.].*))" regex="true"/>
@@ -406,6 +407,7 @@
             <trusting group="pl.droidsonroids.gif" name="android-gif-drawable" version="1.2.29"/>
             <trusting group="pl.droidsonroids.gif" name="android-gif-drawable" version="1.2.30"/>
          </trusted-key>
+         <trusted-key id="B41089A2DA79B0FA5810252872385FF0AF338D52" group="org.threeten" name="threeten-extra" version="1.8.0"/>
          <trusted-key id="B69A63A5EF7183DBC09199AC26E74B6874AEE127" group="com.github.bumptech.glide" name="glide" version="3.8.0"/>
          <trusted-key id="B6E73D84EA4FCC47166087253FAAD2CD5ECBB314">
             <trusting group="commons-beanutils"/>