fix(deps): update dependency ngx-toastr to v18

This MR contains the following updates:

Package	Type	Update	Change
ngx-toastr (source)	dependencies	major	^15.0.0 -> ^18.0.0

needs !680 (merged)

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Release Notes

scttcper/ngx-toastr

v18.0.0

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Features

• upgrade to angular 17 (#​1008) (d6b5e6b)

BREAKING CHANGES

• requires angular 17, typescript 5.2

v17.0.2

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Bug Fixes

• Move easeTime to the constructor (e3e4b74), closes #​996

v17.0.1

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Bug Fixes

• add provenance (fb2720e)

v17.0.0

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Features

• Upgrade to angular 16 (#​995) (38a641d)

BREAKING CHANGES

• requires angular >= 16

v16.2.0

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Features

• Add provider function, convert to standalone and use inject (#​991) (94dba28)

v16.1.1

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Bug Fixes

• Add ng-update entry to package.json (#​988) (29f8537)
• bump dependencies (#​989) (ca20a91)

v16.1.0

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Features

• Add generic for payload in IndividualConfig (#​980) (815e1dd)

v16.0.2

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Bug Fixes

• upgrade dependencies (efaf809)

v16.0.1

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Bug Fixes

• Copy bs5-alert.scss to dist directory (e007ca3)

v16.0.0

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Features

• angular 15, add toastr-bs5-alert.scss (#​963) (bc77677), closes #​962 #​887

BREAKING CHANGES

• support angular 15

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