installation: linux: debian: fix url in sources list

Signed-off-by: Maciej Wal <[email protected]>

Author: Xata

installation/linux/debian.md

@@ -61,7 +61,7 @@ codename=$(grep -oP '(?<=VERSION_CODENAME=).*' /etc/os-release 2>/dev/null || ls
 Update your source's lists:
 
 ```bash
-echo "deb [signed-by=/usr/share/keyrings/fluentbit-keyring.gpg] https://packages.fluentbit.io/ubuntu/$codename $codename main" | sudo tee /etc/apt/sources.list.d/fluent-bit.list
+echo "deb [signed-by=/usr/share/keyrings/fluentbit-keyring.gpg] https://packages.fluentbit.io/debian/$codename $codename main" | sudo tee /etc/apt/sources.list.d/fluent-bit.list
 ```
 
 ## Update your repositories database