[3.0.x] Fixed broken links in docs.

Backport of b28be08cac1f7cde332ca43db65bb733fa3f9bf5 from master

docs/ref/contrib/gis/functions.txt

@@ -38,7 +38,7 @@ Measurement                Relationships             Operations              Edi
 .. class:: Area(expression, **extra)
 
 *Availability*: MariaDB, `MySQL
-<https://dev.mysql.com/doc/refman/en/gis-polygon-property-functions.html#function_area>`__,
+<https://dev.mysql.com/doc/refman/en/gis-polygon-property-functions.html#function_st-area>`_,
 Oracle, `PostGIS <https://postgis.net/docs/ST_Area.html>`__, SpatiaLite
 
 Accepts a single geographic field or expression and returns the area of the

docs/ref/request-response.txt

@@ -837,7 +837,7 @@ Methods
       CSRF protection, but rather a defense in depth measure.
 
     .. _HttpOnly: https://www.owasp.org/index.php/HttpOnly
-    .. _SameSite: https://www.owasp.org/index.php/SameSite
+    .. _SameSite: https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Set-Cookie/SameSite
 
     .. warning::
 

docs/ref/settings.txt

@@ -3141,7 +3141,7 @@ Possible values for the setting are:
 
 * ``None``: disables the flag.
 
-.. _SameSite: https://www.owasp.org/index.php/SameSite
+.. _SameSite: https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Set-Cookie/SameSite
 
 .. setting:: SESSION_COOKIE_SECURE
 

docs/topics/testing/tools.txt

@@ -1008,7 +1008,7 @@ out the `full reference`_ for more details.
     for more information.
 
     .. _Selenium FAQ: https://web.archive.org/web/20160129132110/http://code.google.com/p/selenium/wiki/FrequentlyAskedQuestions#Q:_WebDriver_fails_to_find_elements_/_Does_not_block_on_page_loa
-    .. _Selenium documentation: https://www.seleniumhq.org/docs/04_webdriver_advanced.html#explicit-waits
+    .. _Selenium documentation: https://www.selenium.dev/documentation/en/webdriver/waits/#explicit-wait
 
 Test cases features
 ===================