More conversion in `PDMat` #292

Job	Run time
Julia min - ubuntu-latest - default - pull_request	2m 49s
Julia min - macOS-latest - default - pull_request	1m 40s
Julia min - windows-latest - default - pull_request	3m 31s
Julia lts - ubuntu-latest - default - pull_request	2m 43s
Julia lts - macOS-latest - default - pull_request	2m 6s
Julia lts - windows-latest - default - pull_request	3m 24s
Julia 1 - ubuntu-latest - default - pull_request	4m 6s
Julia 1 - macOS-latest - default - pull_request	2m 25s
Julia 1 - windows-latest - default - pull_request	4m 50s
Julia pre - ubuntu-latest - default - pull_request	3m 49s
Julia pre - macOS-latest - default - pull_request	2m 19s
Julia pre - windows-latest - default - pull_request	4m 32s
Julia 1 - ubuntu-latest - x86 - pull_request	4m 28s
Julia 1 - windows-latest - x86 - pull_request	5m 16s
Julia 1 - macOS-13 - default - pull_request	4m 21s
	52m 19s

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