The "GC2145" library installation is only accessible when you are using a Nicla Vision board. It is not accessible when you are using a GIGA R1 WiFi board. So this result is expected.
There is some information here from a community member about using the GC2145 module with the GIGA R1 WiFi board:
They are using the 3rd party "arducam_dvp" library, which you can install via the Arduino IDE Library Manager