Bump the julia-packages group across 1 directory with 2 updates

[dependabot]

Updates the requirements on LinearAlgebra and LinearSolve to permit the latest version.
Updates LinearAlgebra to
Updates LinearSolve to 5.18.0

Release notes

Sourced from LinearSolve's releases.

v5.18.0

LinearSolve v5.18.0

Diff since v5.17.7

Merged pull requests:

• Apply InvPreconditioner through a temporary instead of aliasing its input (#1323) (@​AJ0070)
• Always use QR with AlmostBandedMatrices (#1324) (@​ErikQQY)
• Route Hermitian like Symmetric instead of always reaching for Cholesky (#1327) (@​AJ0070)
• Keep a sparse Dual operand's pattern through the primal extraction (#1329) (@​ChrisRackauckas-Claude)
• Refactor PureKLU with the pivots reused unless growth says otherwise (#1330) (@​ChrisRackauckas-Claude)
• Add the missing trailing newline to test/Core/banded.jl (#1331) (@​ChrisRackauckas-Claude)
• Route triangular matrices to DirectLdiv! in the default algorithm (#1336) (@​AJ0070)
• Release LinearSolve v5.18.0 (#1339) (@​ChrisRackauckas)

Closed issues:

• InvPreconditioner aliases its input in the two-argument ldiv!, so preconditioned IterativeSolvers solves return the zero vector (#1322)
• defaultalg sends every Hermitian to Cholesky, so indefinite ones fail and sparse ones throw (#1326)
• defaultalg has no method for triangular matrices, so they throw or get solved iteratively (#1335)

Commits

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[dependabot]

Looks like these dependencies are updatable in another way, so this is no longer needed.