[#2118] docs(trino configuration): change gravitino.url to gravitino.…

…uri (#2136)

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### What changes were proposed in this pull request?

Change `gravitino.url` to `gravitino.uri`.

### Why are the changes needed?

The example in trino-connector/installation.md uses different keys for
gravitino link.


https://github.com/datastrato/gravitino/blob/edfcdbea89dbf16d8e48833573c8917f9bcd5972/docs/trino-connector/installation.md?plain=1#L75-L81

From source code, it should be `gravitino.uri`.


https://github.com/datastrato/gravitino/blob/edfcdbea89dbf16d8e48833573c8917f9bcd5972/trino-connector/src/main/java/com/datastrato/gravitino/trino/connector/GravitinoConfig.java#L22

We also need to fix the one in trino-connector/configuration.md.


https://github.com/datastrato/gravitino/blob/edfcdbea89dbf16d8e48833573c8917f9bcd5972/docs/trino-connector/configuration.md?plain=1#L13

Fix: #2118

### Does this PR introduce _any_ user-facing change?

N/A

### How was this patch tested?

Check there is no `gravitino.url` in the document.

Signed-off-by: PoAn Yang <payang@apache.org>

docs/trino-connector/configuration.md

@@ -10,4 +10,4 @@ This software is licensed under the Apache License version 2."
 |--------------------|--------|-----------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------|---------------|
 | connector.name     | string | (none)                | The `connector.name` defines the name of Trino connector, this value is always 'gravitino'.                                                                                                                                                                                                                         | Yes      | 0.2.0         |
 | gravitino.metalake | string | (none)                | The `gravitino.metalake` defines which metalake in Gravitino server the Trino connector uses. Trino connector should set it at start, the value of `gravitino.metalake` needs to be a valid name, Trino connector can detect and load the metalake with catalogs, schemas and tables once created and keep in sync. | Yes      | 0.2.0         |
-| gravitino.url      | string | http://localhost:8090 | The `gravitino.url` defines the connection URL of the Gravitino server, the default value is `http://localhost:8090`. Trino connector can detect and connect to Gravitino server once it is ready, no need to start Gravitino server beforehand.                                                                    | Yes      | 0.2.0         |
+| gravitino.uri      | string | http://localhost:8090 | The `gravitino.uri` defines the connection URL of the Gravitino server, the default value is `http://localhost:8090`. Trino connector can detect and connect to Gravitino server once it is ready, no need to start Gravitino server beforehand.                                                                    | Yes      | 0.2.0         |

docs/trino-connector/installation.md

@@ -72,7 +72,7 @@ To configure Gravitino connector correctly, you need to put the following config
 
 ```text
 connector.name=gravitino
-gravitino.url=http://gravitino-server-host:8090
+gravitino.uri=http://gravitino-server-host:8090
 gravitino.metalake=test
 ```
 
@@ -129,4 +129,4 @@ system
 test.jdbc-mysql
 ```
 
-The catalog named 'test.jdbc-mysql' is the catalog that you created by gravitino server, and you can use it to access the mysql database like other Trino catalogs.
+The catalog named 'test.jdbc-mysql' is the catalog that you created by gravitino server, and you can use it to access the mysql database like other Trino catalogs.