libtins: add version 4.5, update boost

[toge]

Specify library name and version: libtins/*

Try to close #19545.

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• I've read the contributing guidelines.
• I've used a recent Conan client version close to the currently deployed.
• I've tried at least one configuration locally with the conan-center hook activated.

[conan-center-bot]

Conan v1 pipeline ✔️

All green in build 2 (a5bac836e284e8a2c6ed98da39f88b91ddde02f0):

• libtins/4.4:
  All packages built successfully! (All logs)

• libtins/4.3:
  All packages built successfully! (All logs)

• libtins/4.2:
  All packages built successfully! (All logs)

• libtins/4.5:
  All packages built successfully! (All logs)

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Conan v2 pipeline ✔️

Note: Conan v2 builds are now mandatory. Please read our discussion about it.

All green in build 2 (a5bac836e284e8a2c6ed98da39f88b91ddde02f0):

• libtins/4.4:
  All packages built successfully! (All logs)

• libtins/4.3:
  All packages built successfully! (All logs)

• libtins/4.2:
  All packages built successfully! (All logs)

• libtins/4.5:
  All packages built successfully! (All logs)