Auth: Fix inconsistent symbol validation by allowing underscore "_" in strong password policy (#114571)

* Update validation regex for symbol requirement

Fixes #114544 
frontend: accept underscore as valid symbol in password validation

* test: add underscore symbol test for strong password policy

* chore(changelog): add changelog for #114571

* Delete changelog/114571.md

* fix: correct indentation in password test

* chore(workflows): skip OIDC steps for fork PRs

* chore(workflows): pass fork status to reusable workflow

* revert: remove workflow changes for fork detection

* revert: remove fork status parameter from workflow caller

* Fix formatting issues in PR patch check workflow

---------

Co-authored-by: Mihaly Gyongyosi <mgyongyosi@users.noreply.github.com>

pkg/services/user/password_test.go

@@ -83,6 +83,12 @@ func TestPasswowrdService_ValidatePasswordHardcodePolicy(t *testing.T) {
 			expectedError:               nil,
 			strongPasswordPolicyEnabled: true,
 		},
+		{
+			name:                        "should accept underscore as a valid symbol when strong password policy is enabled",
+			passwordTest:                LOWERCASE + UPPERCASE + NUMBER + "_",
+			expectedError:               nil,
+			strongPasswordPolicyEnabled: true,
+		},
 	}
 	for _, tc := range testCases {
 		cfg := setting.NewCfg()